Changes:

* added ESLint and updated all code base 
* updated SVGPathCommander, CubicBezier, shorter-js, minifill
* updated polyfills
* minor CSS fixes

README.md

@@ -41,6 +41,20 @@ All above mentioned components have a BASE version which doesn't include value p
 # Wiki
 For a complete developer guide, usage and stuff like npm, visit [the wiki](https://github.com/thednp/kute.js/wiki).
 
+
+# ESLint
+If you include KUTE.js in your project, we recommend using the following ESLint rule:
+
+```js
+rules: {
+  // Disable bitwise for isArcCommand & isPathCommand from SVGPathCommander
+  // as well as the KUTE.js interpolation functions 
+  "no-bitwise": 0,
+}
+```
+Some **SVGPathCommander** as well as **KUTE.js** interpolation functions make use of `|` (OR) and `>>` operators for fastest number operations.
+
+
 # Browser Support
 KUTE.js is redeveloped for maximum performance on modern browsers. Some legacy browsers might some help, so give them a small polyfill set with most essential features required by KUTE.js to work, powered by [minifill](https://github.com/thednp/minifill), try it. For broader projects you might want to consider <a href="https://cdn.polyfill.io/v2/docs/">polyfills</a>. 
 

demo/assets/css/kute.css

@@ -440,7 +440,7 @@ pre.language-markup:after {
 	font-size: 12px; color: #999;
 }
 
-pre.language-javascript:after {content: 'Javascript';}
+pre.language-javascript:after {content: 'JavaScript';}
 pre.language-clike:after {content: 'node';}
 pre.language-markup:after {content: 'HTML';}
 pre code {background: none;padding: 0; font-weight: normal; font-size: 100%;}

demo/assets/js/transformFunctions.js

@@ -6,10 +6,11 @@ var translateExamples = document.getElementById('translate-examples'),
     trx = translateExamples.getElementsByTagName('div')[1],
     trry = translateExamples.getElementsByTagName('div')[2],
     trz = translateExamples.getElementsByTagName('div')[3],
-    tr2dTween = KUTE.to(tr2d, {translate:[170,0]}, {easing:'easingCubicOut', yoyo:true, repeat: 1, duration:1500}),
-    trxTween = KUTE.to(trx, {translateX:-170}, {easing:'easingCubicOut', yoyo:true, repeat: 1, duration:1500})
+    tr2dTween = KUTE.to(tr2d, {translate:[170,170]}, {easing:'easingCubicOut', yoyo:true, repeat: 1, duration:1500}),
+    trxTween = KUTE.to(trx, {translateX:-170}, {easing:'easingCubicOut', yoyo:true, repeat: 1, duration:1500}),
     trryTween = KUTE.to(trry, {translate3d:[0,170,0]}, {easing:'easingCubicOut', yoyo:true, repeat: 1, duration:1500}),
     trzTween = KUTE.to(trz, {perspective:200, translate3d:[0,0,-100]}, {easing:'easingCubicOut', yoyo:true, repeat: 1, duration:1500});
+
 translateBtn.addEventListener('click', function(){
     !tr2dTween.playing && tr2dTween.start();
     !trxTween.playing && trxTween.start();
@@ -27,6 +28,7 @@ var rotExamples = document.getElementById('rotExamples'),
     rxTween = KUTE.to(rx, {rotateX:180}, {easing:'linear', yoyo:true, repeat: 1, duration:1500}),
     ryTween = KUTE.to(ry, {perspective:200, rotate3d:[0,-180,0],scale:1.2}, {easing:'easingCubicInOut', yoyo:true, repeat: 1, duration:1500}),
     rzTween = KUTE.to(rz, {rotateZ:360}, {easing:'easingBackOut', yoyo:true, repeat: 1, duration:1500});
+
 rotBtn.addEventListener('click', function(){
     !r2dTween.playing && r2dTween.start();
     !rxTween.playing && rxTween.start();

demo/filterEffects.html

@@ -145,7 +145,7 @@ let fe4 = KUTE.to('selector4', {filter :{ url: '#mySVGFilter', opacity: 40, drop
             <div class="example-item example-box" style="background: url('https://picsum.photos/400/300') center center no-repeat; filter: url(#mySVGFilter)">FE1</div>
             <div class="example-item example-box" style="background: url('https://picsum.photos/400/300') center center no-repeat; filter: url(#mySVGFilter)">FE2</div>
             <div class="example-item example-box" style="background: url('https://picsum.photos/400/300') center center no-repeat; filter: url(#mySVGFilter)">FE3</div>
-            <div class="example-item example-box" style="background: url('https://picsum.photos/400/300') center center no-repeat; filter: url(#mySVGFilter)">FE4</div>
+            <div class="example-item example-box" style="background: url('https://picsum.photos/400/300') center center no-repeat">FE4</div>
 
             <div class="example-buttons">
                 <a class="btn btn-blue" href="javascript:void(0)">Start</a>

demo/src/kute-base.js

@@ -1,5 +1,5 @@
 /*!
-* KUTE.js Base v2.1.0 (http://thednp.github.io/kute.js)
+* KUTE.js Base v2.1.1-alpha1 (http://thednp.github.io/kute.js)
 * Copyright 2015-2021 © thednp
 * Licensed under MIT (https://github.com/thednp/kute.js/blob/master/LICENSE)
 */
@@ -9,118 +9,153 @@
   (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.KUTE = factory());
 }(this, (function () { 'use strict';
 
-  var version = "2.1.0";
+  var version = "2.1.1-alpha1";
 
   var KUTE = {};
 
   var Tweens = [];
 
-  var globalObject = typeof (global) !== 'undefined' ? global
-                    : typeof(self) !== 'undefined' ? self
-                    : typeof(window) !== 'undefined' ? window : {};
+  var globalObject;
 
+  if (typeof (global) !== 'undefined') { globalObject = global; }
+  else if (typeof (window.self) !== 'undefined') { globalObject = window.self; }
+  else if (typeof (window) !== 'undefined') { globalObject = window; }
+  else { globalObject = {}; }
+
+  var globalObject$1 = globalObject;
+
+  // KUTE.js INTERPOLATE FUNCTIONS
+  // =============================
   var Interpolate = {};
 
+  // schedule property specific function on animation start
+  // link property update function to KUTE.js execution context
   var onStart = {};
 
   var Time = {};
-  Time.now = self.performance.now.bind(self.performance);
+  var that = window.self || window || {};
+  Time.now = that.performance.now.bind(that.performance);
+
   var Tick = 0;
+
   var Ticker = function (time) {
     var i = 0;
-    while ( i < Tweens.length ) {
-      if ( Tweens[i].update(time) ) {
-        i++;
+    while (i < Tweens.length) {
+      if (Tweens[i].update(time)) {
+        i += 1;
       } else {
         Tweens.splice(i, 1);
       }
     }
     Tick = requestAnimationFrame(Ticker);
   };
+
+  // stop requesting animation frame
   function stop() {
-    setTimeout(function () {
+    setTimeout(function () { // re-added for #81
       if (!Tweens.length && Tick) {
         cancelAnimationFrame(Tick);
         Tick = null;
-        for (var obj in onStart) {
+        Object.keys(onStart).forEach(function (obj) {
           if (typeof (onStart[obj]) === 'function') {
-            KUTE[obj] && (delete KUTE[obj]);
+            if (KUTE[obj]) { delete KUTE[obj]; }
           } else {
-            for (var prop in onStart[obj]) {
-              KUTE[prop] && (delete KUTE[prop]);
-            }
+            Object.keys(onStart[obj]).forEach(function (prop) {
+              if (KUTE[prop]) { delete KUTE[prop]; }
+            });
           }
-        }
-        for (var i in Interpolate) {
-          KUTE[i] && (delete KUTE[i]);
-        }
+        });
+
+        Object.keys(Interpolate).forEach(function (i) {
+          if (KUTE[i]) { delete KUTE[i]; }
+        });
       }
-    },64);
+    }, 64);
   }
-  var Render = {Tick: Tick,Ticker: Ticker,Tweens: Tweens,Time: Time};
-  for ( var blob in Render ) {
+
+  // KUTE.js render update functions
+  // ===============================
+  var Render = {
+    Tick: Tick, Ticker: Ticker, Tweens: Tweens, Time: Time,
+  };
+  Object.keys(Render).forEach(function (blob) {
     if (!KUTE[blob]) {
       KUTE[blob] = blob === 'Time' ? Time.now : Render[blob];
     }
-  }
-  globalObject["_KUTE"] = KUTE;
+  });
+  globalObject$1._KUTE = KUTE;
 
   var defaultOptions = {
     duration: 700,
     delay: 0,
-    easing: 'linear'
+    easing: 'linear',
   };
 
+  // link properties to interpolate functions
   var linkProperty = {};
 
+  // schedule property specific function on animation complete
   var onComplete = {};
 
   var Objects = {
     defaultOptions: defaultOptions,
     linkProperty: linkProperty,
     onStart: onStart,
-    onComplete: onComplete
+    onComplete: onComplete,
   };
 
+  // util - a general object for utils like rgbToHex, processEasing
   var Util = {};
 
   var connect = {};
 
+  // Select Robert Penner's Easing Functions
+  // updated for ESLint
   var Easing = {
-    linear : function (t) { return t; },
-    easingQuadraticIn : function (t) { return t*t; },
-    easingQuadraticOut : function (t) { return t*(2-t); },
-    easingQuadraticInOut : function (t) { return t<.5 ? 2*t*t : -1+(4-2*t)*t; },
-    easingCubicIn : function (t) { return t*t*t; },
-    easingCubicOut : function (t) { return (--t)*t*t+1; },
-    easingCubicInOut : function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1; },
-    easingCircularIn : function (t) { return -(Math.sqrt(1 - (t * t)) - 1); },
-    easingCircularOut : function (t) { return Math.sqrt(1 - (t = t - 1) * t); },
-    easingCircularInOut : function (t) { return ((t*=2) < 1) ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1); },
-    easingBackIn : function (t) { var s = 1.70158; return t * t * ((s + 1) * t - s) },
-    easingBackOut : function (t) { var s = 1.70158; return --t * t * ((s + 1) * t + s) + 1 },
-    easingBackInOut : function (t) {
+    linear: function (t) { return t; },
+    easingQuadraticIn: function (t) { return t * t; },
+    easingQuadraticOut: function (t) { return t * (2 - t); },
+    easingQuadraticInOut: function (t) { return (t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t); },
+    easingCubicIn: function (t) { return t * t * t; },
+    easingCubicOut: function (t0) { var t = t0 - 1; return t * t * t + 1; },
+    easingCubicInOut: function (t) { return (t < 0.5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1); },
+    easingCircularIn: function (t) { return -(Math.sqrt(1 - (t * t)) - 1); },
+    easingCircularOut: function (t0) { },
+    easingCircularInOut: function (t0) {
+      var t = t0 * 2;
+      if (t < 1) { return -0.5 * (Math.sqrt(1 - t * t) - 1); }
+      t -= 2; return 0.5 * (Math.sqrt(1 - t * t) + 1);
+    },
+    easingBackIn: function (t) { var s = 1.70158; return t * t * ((s + 1) * t - s); },
+    easingBackOut: function (t0) {
+      var s = 1.70158;
+      var t = t0 - 1;
+      return t * t * ((s + 1) * t + s) + 1;
+    },
+    easingBackInOut: function (t0) {
       var s = 1.70158 * 1.525;
-      if ((t *= 2) < 1) { return 0.5 * (t * t * ((s + 1) * t - s)) }
-      return 0.5 * ((t -= 2) * t * ((s + 1) * t + s) + 2)
-    }
+      var t = t0 * 2;
+      if (t < 1) { return 0.5 * (t * t * ((s + 1) * t - s)); }
+      t -= 2; return 0.5 * (t * t * ((s + 1) * t + s) + 2);
+    },
   };
+
   function processEasing(fn) {
-    if ( typeof fn === 'function') {
+    if (typeof fn === 'function') {
       return fn;
-    } else if ( typeof Easing[fn] === 'function' ) {
-      return Easing[fn];
-    } else {
-      return Easing.linear
+    } if (typeof Easing[fn] === 'function') {
+      return Easing[fn]; // regular Robert Penner Easing Functions
     }
+    return Easing.linear;
   }
+
   connect.processEasing = processEasing;
 
   function add (tw) { return Tweens.push(tw); }
 
   function remove (tw) {
     var i = Tweens.indexOf(tw);
-    i !== -1 && Tweens.splice(i, 1);
+    if (i !== -1) { Tweens.splice(i, 1); }
   }
 
   function getAll () { return Tweens; }
@@ -131,33 +166,33 @@
 
   function linkInterpolation() {
     var this$1 = this;
-    var loop = function ( component ) {
+   // DON'T change
+    Object.keys(linkProperty).forEach(function (component) {
       var componentLink = linkProperty[component];
       var componentProps = supportedProperties[component];
-      for ( var fnObj in componentLink ) {
-        if ( typeof(componentLink[fnObj]) === 'function'
-            && Object.keys(this$1.valuesEnd).some(function (i) { return componentProps && componentProps.includes(i)
-            || i=== 'attr' && Object.keys(this$1.valuesEnd[i]).some(function (j) { return componentProps && componentProps.includes(j); }); } ) )
-        {
-          !KUTE[fnObj] && (KUTE[fnObj] = componentLink[fnObj]);
+
+      Object.keys(componentLink).forEach(function (fnObj) {
+        if (typeof (componentLink[fnObj]) === 'function' // ATTR, colors, scroll, boxModel, borderRadius
+            && Object.keys(this$1.valuesEnd).some(function (i) { return (componentProps && componentProps.includes(i))
+            || (i === 'attr' && Object.keys(this$1.valuesEnd[i]).some(function (j) { return componentProps && componentProps.includes(j); })); })) {
+          if (!KUTE[fnObj]) { KUTE[fnObj] = componentLink[fnObj]; }
         } else {
-          for ( var prop in this$1.valuesEnd ) {
-            for ( var i in this$1.valuesEnd[prop] ) {
-              if ( typeof(componentLink[i]) === 'function' ) {
-                !KUTE[i] && (KUTE[i] = componentLink[i]);
+          Object.keys(this$1.valuesEnd).forEach(function (prop) {
+            Object.keys(this$1.valuesEnd[prop]).forEach(function (i) {
+              if (typeof (componentLink[i]) === 'function') { // transformCSS3
+                if (!KUTE[i]) { KUTE[i] = componentLink[i]; }
               } else {
-                for (var j in componentLink[fnObj]){
-                  if (componentLink[i] && typeof(componentLink[i][j]) === 'function' ) {
-                    !KUTE[j] && (KUTE[j] = componentLink[i][j]);
+                Object.keys(componentLink[fnObj]).forEach(function (j) {
+                  if (componentLink[i] && typeof (componentLink[i][j]) === 'function') { // transformMatrix
+                    if (!KUTE[j]) { KUTE[j] = componentLink[i][j]; }
                   }
-                }
+                });
               }
-            }
-          }
+            });
+          });
         }
-      }
-    };
-    for (var component in linkProperty)loop( component );
+      });
+    });
   }
 
   var Internals = {
@@ -166,136 +201,203 @@
     getAll: getAll,
     removeAll: removeAll,
     stop: stop,
-    linkInterpolation: linkInterpolation
+    linkInterpolation: linkInterpolation,
   };
 
+  // a public selector utility
   function selector(el, multi) {
-    try{
+    try {
       var requestedElem;
-      if (multi){
-        requestedElem = el instanceof HTMLCollection
-                     || el instanceof NodeList
-                     || el instanceof Array && el.every(function (x) { return x instanceof Element; })
-                      ? el : document.querySelectorAll(el);
+      var itemsArray;
+      if (multi) {
+        itemsArray = el instanceof Array && el.every(function (x) { return x instanceof Element; });
+        requestedElem = el instanceof HTMLCollection || el instanceof NodeList || itemsArray
+          ? el : document.querySelectorAll(el);
       } else {
-        requestedElem = el instanceof Element
-                     || el === window
-                      ? el : document.querySelector(el);
+        requestedElem = el instanceof Element || el === window // scroll
+          ? el : document.querySelector(el);
       }
       return requestedElem;
-    } catch(e){
-      console.error(("KUTE.js - Element(s) not found: " + el + "."));
+    } catch (e) {
+      throw TypeError(("KUTE.js - Element(s) not found: " + el + "."));
     }
   }
 
-  var AnimationBase = function AnimationBase(Component){
-    return this.setComponent(Component)
+  // Animation class
+  var AnimationBase = function AnimationBase(Component) {
+    return this.setComponent(Component);
   };
-  AnimationBase.prototype.setComponent = function setComponent (Component){
+
+  AnimationBase.prototype.setComponent = function setComponent (Component) {
     var ComponentName = Component.component;
+    // const Objects = { defaultValues, defaultOptions, Interpolate, linkProperty }
     var Functions = { onStart: onStart, onComplete: onComplete };
     var Category = Component.category;
     var Property = Component.property;
-    supportedProperties[ComponentName] = Component.properties || Component.subProperties || Component.property;
+    // ESLint
+    this._ = 0;
+
+    // set supported category/property
+    supportedProperties[ComponentName] = Component.properties
+      || Component.subProperties || Component.property;
+
+    // set additional options
     if (Component.defaultOptions) {
-      for (var op in Component.defaultOptions) {
+      Object.keys(Component.defaultOptions).forEach(function (op) {
         defaultOptions[op] = Component.defaultOptions[op];
-      }
+      });
     }
+
+    // set functions
     if (Component.functions) {
-      for (var fn in Functions) {
+      Object.keys(Functions).forEach(function (fn) {
         if (fn in Component.functions) {
-          if ( typeof (Component.functions[fn]) === 'function') {
-            !Functions[fn][ComponentName] && (Functions[fn][ComponentName] = {});
-            !Functions[fn][ComponentName][ Category||Property ] && (Functions[fn][ComponentName][ Category||Property ] = Component.functions[fn]);
-          } else {
-            for ( var ofn in Component.functions[fn] ){
-              !Functions[fn][ComponentName] && (Functions[fn][ComponentName] = {});
-              !Functions[fn][ComponentName][ofn] && (Functions[fn][ComponentName][ofn] = Component.functions[fn][ofn]);
+          if (typeof (Component.functions[fn]) === 'function') {
+            // if (!Functions[fn][ Category||Property ]) {
+            // Functions[fn][ Category||Property ] = Component.functions[fn];
+            // }
+            if (!Functions[fn][ComponentName]) { Functions[fn][ComponentName] = {}; }
+            if (!Functions[fn][ComponentName][Category || Property]) {
+              Functions[fn][ComponentName][Category || Property] = Component.functions[fn];
             }
+          } else {
+            Object.keys(Component.functions[fn]).forEach(function (ofn) {
+              // if (!Functions[fn][ofn]) Functions[fn][ofn] = Component.functions[fn][ofn];
+              if (!Functions[fn][ComponentName]) { Functions[fn][ComponentName] = {}; }
+              if (!Functions[fn][ComponentName][ofn]) {
+                Functions[fn][ComponentName][ofn] = Component.functions[fn][ofn];
+              }
+            });
           }
         }
-      }
+      });
     }
+
+    // set interpolate
     if (Component.Interpolate) {
-      for (var fni in Component.Interpolate) {
+      Object.keys(Component.Interpolate).forEach(function (fni) {
         var compIntObj = Component.Interpolate[fni];
-        if ( typeof(compIntObj) === 'function' && !Interpolate[fni] ) {
+        if (typeof (compIntObj) === 'function' && !Interpolate[fni]) {
           Interpolate[fni] = compIntObj;
         } else {
-          for ( var sfn in compIntObj ) {
-            if ( typeof(compIntObj[sfn]) === 'function' && !Interpolate[fni] ) {
+          Object.keys(compIntObj).forEach(function (sfn) {
+            if (typeof (compIntObj[sfn]) === 'function' && !Interpolate[fni]) {
               Interpolate[fni] = compIntObj[sfn];
             }
-          }
+          });
         }
-      }
+      });
+
       linkProperty[ComponentName] = Component.Interpolate;
     }
+
+    // set component util
     if (Component.Util) {
-      for (var fnu in Component.Util){
-        !Util[fnu] && (Util[fnu] = Component.Util[fnu]);
-      }
+      Object.keys(Component.Util).forEach(function (fnu) {
+        if (!Util[fnu]) { Util[fnu] = Component.Util[fnu]; }
+      });
     }
-    return {name:ComponentName}
+
+    return { name: ComponentName };
   };
 
-  function queueStart(){
-    for (var obj in onStart) {
+  function queueStart() {
+    var this$1 = this;
+
+    // fire onStart actions
+    Object.keys(onStart).forEach(function (obj) {
       if (typeof (onStart[obj]) === 'function') {
-        onStart[obj].call(this,obj);
+        onStart[obj].call(this$1, obj); // easing functions
       } else {
-        for (var prop in onStart[obj]) {
-          onStart[obj][prop].call(this,prop);
-        }
+        Object.keys(onStart[obj]).forEach(function (prop) {
+          onStart[obj][prop].call(this$1, prop);
+        });
       }
-    }
+    });
+
+    // add interpolations
     linkInterpolation.call(this);
   }
 
-  var TweenBase = function TweenBase(targetElement, startObject, endObject, options){
+  // single Tween object construct
+  // TweenBase is meant to be use for pre-processed values
+  var TweenBase = function TweenBase(targetElement, startObject, endObject, opsObject) {
+    var this$1 = this;
+
+    // element animation is applied to
     this.element = targetElement;
+
     this.playing = false;
+
     this._startTime = null;
     this._startFired = false;
-    this.valuesEnd = endObject;
-    this.valuesStart = startObject;
-    options = options || {};
+
+    this.valuesEnd = endObject; // valuesEnd
+    this.valuesStart = startObject; // valuesStart
+
+    // OPTIONS
+    var options = opsObject || {};
+    // internal option to process inline/computed style at start instead of init
+    // used by to() method and expects object : {} / false
     this._resetStart = options.resetStart || 0;
+    // you can only set a core easing function as default
     this._easing = typeof (options.easing) === 'function' ? options.easing : connect.processEasing(options.easing);
-    this._duration = options.duration || defaultOptions.duration;
-    this._delay = options.delay || defaultOptions.delay;
-    for (var op in options) {
+    this._duration = options.duration || defaultOptions.duration; // duration option | default
+    this._delay = options.delay || defaultOptions.delay; // delay option | default
+
+    // set other options
+    Object.keys(options).forEach(function (op) {
       var internalOption = "_" + op;
-      if( !(internalOption in this ) ) { this[internalOption] = options[op]; }
-    }
+      if (!(internalOption in this$1)) { this$1[internalOption] = options[op]; }
+    });
+
+    // callbacks should not be set as undefined
+    // this._onStart = options.onStart
+    // this._onUpdate = options.onUpdate
+    // this._onStop = options.onStop
+    // this._onComplete = options.onComplete
+
+    // queue the easing
     var easingFnName = this._easing.name;
     if (!onStart[easingFnName]) {
-      onStart[easingFnName] = function(prop){
-        !KUTE[prop] && prop === this._easing.name && (KUTE[prop] = this._easing);
+      onStart[easingFnName] = function easingFn(prop) {
+        if (!KUTE[prop] && prop === this._easing.name) { KUTE[prop] = this._easing; }
       };
     }
+
     return this;
   };
+
+  // tween prototype
+  // queue tween object to main frame update
+  // move functions that use the ticker outside the prototype to be in the same scope with it
   TweenBase.prototype.start = function start (time) {
+    // now it's a good time to start
     add(this);
     this.playing = true;
+
     this._startTime = typeof time !== 'undefined' ? time : KUTE.Time();
     this._startTime += this._delay;
+
     if (!this._startFired) {
       if (this._onStart) {
         this._onStart.call(this);
       }
+
       queueStart.call(this);
+
       this._startFired = true;
     }
-    !Tick && Ticker();
+
+    if (!Tick) { Ticker(); }
     return this;
   };
+
   TweenBase.prototype.stop = function stop () {
     if (this.playing) {
       remove(this);
       this.playing = false;
+
       if (this._onStop) {
         this._onStop.call(this);
       }
@@ -303,157 +405,254 @@
     }
     return this;
   };
+
   TweenBase.prototype.close = function close () {
-    for (var component in onComplete){
-      for (var toClose in onComplete[component]){
-        onComplete[component][toClose].call(this,toClose);
-      }
-    }
+      var this$1 = this;
+
+    // scroll|transformMatrix need this
+    Object.keys(onComplete).forEach(function (component) {
+      Object.keys(onComplete[component]).forEach(function (toClose) {
+        onComplete[component][toClose].call(this$1, toClose);
+      });
+    });
+    // when all animations are finished, stop ticking after ~3 frames
     this._startFired = false;
     stop.call(this);
   };
+
   TweenBase.prototype.chain = function chain (args) {
     this._chain = [];
     this._chain = args.length ? args : this._chain.concat(args);
     return this;
   };
+
   TweenBase.prototype.stopChainedTweens = function stopChainedTweens () {
-    this._chain && this._chain.length && this._chain.map(function (tw){ return tw.stop(); });
+    if (this._chain && this._chain.length) { this._chain.forEach(function (tw) { return tw.stop(); }); }
   };
+
   TweenBase.prototype.update = function update (time) {
-    time = time !== undefined ? time : KUTE.Time();
-    var elapsed, progress;
-    if ( time < this._startTime && this.playing ) { return true; }
-    elapsed = (time - this._startTime) / this._duration;
+      var this$1 = this;
+
+    var T = time !== undefined ? time : KUTE.Time();
+
+    var elapsed;
+
+    if (T < this._startTime && this.playing) { return true; }
+
+    elapsed = (T - this._startTime) / this._duration;
     elapsed = (this._duration === 0 || elapsed > 1) ? 1 : elapsed;
-    progress = this._easing(elapsed);
-    for (var tweenProp in this.valuesEnd){
-      KUTE[tweenProp](this.element,this.valuesStart[tweenProp],this.valuesEnd[tweenProp],progress);
-    }
+
+    // calculate progress
+    var progress = this._easing(elapsed);
+
+    // render the update
+    Object.keys(this.valuesEnd).forEach(function (tweenProp) {
+      KUTE[tweenProp](this$1.element,
+        this$1.valuesStart[tweenProp],
+        this$1.valuesEnd[tweenProp],
+        progress);
+    });
+
+    // fire the updateCallback
     if (this._onUpdate) {
       this._onUpdate.call(this);
     }
+
     if (elapsed === 1) {
+      // fire the complete callback
       if (this._onComplete) {
         this._onComplete.call(this);
       }
+
+      // now we're sure no animation is running
       this.playing = false;
+
+      // stop ticking when finished
       this.close();
-      if (this._chain !== undefined && this._chain.length){
-        this._chain.map(function (tw){ return tw.start(); });
+
+      // start animating chained tweens
+      if (this._chain !== undefined && this._chain.length) {
+        this._chain.map(function (tw) { return tw.start(); });
       }
+
       return false;
     }
+
     return true;
   };
+
+  // Update Tween Interface
   connect.tween = TweenBase;
 
   function fromTo(element, startObject, endObject, optionsObj) {
-    optionsObj = optionsObj || {};
-    return new connect.tween(selector(element), startObject, endObject, optionsObj)
+    var options = optionsObj || {};
+    var TweenConstructor = connect.tween;
+    return new TweenConstructor(selector(element), startObject, endObject, options);
   }
 
-  function numbers(a, b, v) {
-    a = +a; b -= a; return a + b * v;
+  function numbers(a, b, v) { // number1, number2, progress
+    var A = +a;
+    var B = b - a;
+    // a = +a; b -= a;
+    return A + B * v;
   }
 
-  function arrays(a,b,v){
+  function arrays(a, b, v) {
     var result = [];
-    for ( var i=0, l=b.length; i<l; i++ ) {
-      result[i] = ((a[i] + (b[i] - a[i]) * v) * 1000 >> 0 ) / 1000;
+    for (var i = 0, l = b.length; i < l; i += 1) {
+      result[i] = ((a[i] + (b[i] - a[i]) * v) * 1000 >> 0) / 1000;
     }
-    return result
+    return result;
   }
 
+  /* transformMatrix = {
+    property : 'transform',
+    defaultValue: {},
+    interpolators: {},
+    functions = { prepareStart, prepareProperty, onStart, crossCheck }
+  } */
+
+  // Component name
   var matrixComponent = 'transformMatrixBase';
-  var CSS3Matrix = typeof(DOMMatrix) !== 'undefined' ? DOMMatrix
-                   : typeof(WebKitCSSMatrix) !== 'undefined' ? WebKitCSSMatrix
-                   : typeof(CSSMatrix) !== 'undefined' ? CSSMatrix
-                   : typeof(MSCSSMatrix) !== 'undefined' ? MSCSSMatrix
-                   : null;
+
+  // Component special
+  // this component is restricted to modern browsers only
+  var CSS3Matrix = typeof (DOMMatrix) !== 'undefined' ? DOMMatrix : null;
+
+  // Component Functions
   var onStartTransform = {
-    transform : function(tweenProp) {
-      if (this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
+    transform: function transform(tweenProp) {
+      if (CSS3Matrix && this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
         KUTE[tweenProp] = function (elem, a, b, v) {
-          var matrix = new CSS3Matrix(), transformObject = {};
-          for ( var p in b ) {
-            transformObject[p] = p === 'perspective' ? numbers(a[p],b[p],v) : arrays(a[p],b[p],v);
+          var matrix = new CSS3Matrix();
+          var tObject = {};
+
+          Object.keys(b).forEach(function (p) {
+            tObject[p] = p === 'perspective' ? numbers(a[p], b[p], v) : arrays(a[p], b[p], v);
+          });
+
+          // set perspective
+          if (tObject.perspective) { matrix.m34 = -1 / tObject.perspective; }
+
+          // set translate
+          matrix = tObject.translate3d
+            ? matrix.translate(tObject.translate3d[0], tObject.translate3d[1], tObject.translate3d[2])
+            : matrix;
+
+          // set rotation
+          matrix = tObject.rotate3d
+            ? matrix.rotate(tObject.rotate3d[0], tObject.rotate3d[1], tObject.rotate3d[2])
+            : matrix;
+
+          // set skew
+          if (tObject.skew) {
+            matrix = tObject.skew[0] ? matrix.skewX(tObject.skew[0]) : matrix;
+            matrix = tObject.skew[1] ? matrix.skewY(tObject.skew[1]) : matrix;
           }
-          transformObject.perspective && (matrix.m34 = -1/transformObject.perspective);
-          matrix = transformObject.translate3d ? (matrix.translate(transformObject.translate3d[0],transformObject.translate3d[1],transformObject.translate3d[2])) : matrix;
-          matrix = transformObject.rotate3d ? (matrix.rotate(transformObject.rotate3d[0],transformObject.rotate3d[1],transformObject.rotate3d[2])) : matrix;
-          if (transformObject.skew) {
-            matrix = transformObject.skew[0] ? matrix.skewX(transformObject.skew[0]) : matrix;
-            matrix = transformObject.skew[1] ? matrix.skewY(transformObject.skew[1]) : matrix;
-          }
-          matrix = transformObject.scale3d ? (matrix.scale(transformObject.scale3d[0],transformObject.scale3d[1],transformObject.scale3d[2])): matrix;
+
+          // set scale
+          matrix = tObject.scale3d
+            ? matrix.scale(tObject.scale3d[0], tObject.scale3d[1], tObject.scale3d[2])
+            : matrix;
+
+          // set element style
           elem.style[tweenProp] = matrix.toString();
         };
       }
     },
-    CSS3Matrix: function(prop) {
-      if (this.valuesEnd.transform){
-        !KUTE[prop] && (KUTE[prop] = CSS3Matrix);
+    CSS3Matrix: function CSS3Matrix$1(prop) {
+      if (CSS3Matrix && this.valuesEnd.transform) {
+        if (!KUTE[prop]) { KUTE[prop] = CSS3Matrix; }
       }
     },
   };
+
+  // Component Base Object
   var baseMatrixTransform = {
     component: matrixComponent,
     property: 'transform',
-    functions: {onStart: onStartTransform},
+    functions: { onStart: onStartTransform },
     Interpolate: {
       perspective: numbers,
       translate3d: arrays,
       rotate3d: arrays,
       skew: arrays,
-      scale3d: arrays
-    }
+      scale3d: arrays,
+    },
   };
 
-  function boxModelOnStart(tweenProp){
+  // Component Functions
+  function boxModelOnStart(tweenProp) {
     if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
       KUTE[tweenProp] = function (elem, a, b, v) {
-        elem.style[tweenProp] = (v > 0.99 || v < 0.01 ? ((numbers(a,b,v)*10)>>0)/10 : (numbers(a,b,v) ) >> 0) + "px";
+        elem.style[tweenProp] = (v > 0.99 || v < 0.01
+          ? ((numbers(a, b, v) * 10) >> 0) / 10
+          : (numbers(a, b, v)) >> 0) + "px";
       };
     }
   }
-  var baseBoxProps = ['top','left','width','height'];
+
+  // Component Base Props
+  var baseBoxProps = ['top', 'left', 'width', 'height'];
   var baseBoxOnStart = {};
-  baseBoxProps.map(function (x){ return baseBoxOnStart[x] = boxModelOnStart; });
+  baseBoxProps.forEach(function (x) { baseBoxOnStart[x] = boxModelOnStart; });
+
+  // Component Base
   var baseBoxModel = {
     component: 'baseBoxModel',
     category: 'boxModel',
     properties: baseBoxProps,
-    Interpolate: {numbers: numbers},
-    functions: {onStart: baseBoxOnStart}
+    Interpolate: { numbers: numbers },
+    functions: { onStart: baseBoxOnStart },
   };
 
-  function onStartOpacity(tweenProp){
-    if ( tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
+  /* opacityProperty = {
+    property: 'opacity',
+    defaultValue: 1,
+    interpolators: {numbers},
+    functions = { prepareStart, prepareProperty, onStart }
+  } */
+
+  // Component Functions
+  function onStartOpacity(tweenProp/* , value */) {
+    // opacity could be 0 sometimes, we need to check regardless
+    if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
       KUTE[tweenProp] = function (elem, a, b, v) {
-        elem.style[tweenProp] = ((numbers(a,b,v) * 1000)>>0)/1000;
+        elem.style[tweenProp] = ((numbers(a, b, v) * 1000) >> 0) / 1000;
       };
     }
   }
+
+  // Base Component
   var baseOpacity = {
     component: 'baseOpacity',
     property: 'opacity',
-    Interpolate: {numbers: numbers},
-    functions: {onStart: onStartOpacity}
+    // defaultValue: 1,
+    Interpolate: { numbers: numbers },
+    functions: { onStart: onStartOpacity },
   };
 
+  // import {baseCrossBrowserMove} from './components/crossBrowserMove.js'
+
+  // const Transform = new Animation(baseTransform)
   var Transform = new AnimationBase(baseMatrixTransform);
   var BoxModel = new AnimationBase(baseBoxModel);
   var Opacity = new AnimationBase(baseOpacity);
+  // const Move = new Animation(baseCrossBrowserMove)
+  // support for kute-base.js ends here
+
   var indexBase = {
     Animation: AnimationBase,
     Components: {
       Transform: Transform,
       BoxModel: BoxModel,
       Opacity: Opacity,
+      // Move
     },
+
     Tween: TweenBase,
     fromTo: fromTo,
+
     Objects: Objects,
     Easing: Easing,
     Util: Util,
@@ -461,7 +660,7 @@
     Interpolate: Interpolate,
     Internals: Internals,
     Selector: selector,
-    Version: version
+    Version: version,
   };
 
   return indexBase;

demo/src/polyfill-legacy.min.js

@@ -1,3 +1,3 @@
-// KUTE.js Polyfill v2.0.14 | 2020 © thednp | MIT-License
+// KUTE.js Polyfill v2.1.1-alpha1 | 2021 © thednp | MIT-License
 "use strict";
 var r,t,n,e;if(Function.prototype.bind||(Function.prototype.bind=function(){var r=Array.prototype.slice,t=this,n=arguments[0],e=r.call(arguments,1);if("function"!=typeof t)throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");return function(){var o=e.concat(r.call(arguments));return t.apply(n,o)}}),Array.from||(Array.from=(r=Object.prototype.toString,t=function(t){return"function"==typeof t||"[object Function]"===r.call(t)},n=Math.pow(2,53)-1,e=function(r){var t=function(r){var t=Number(r);return isNaN(t)?0:0!==t&&isFinite(t)?(t>0?1:-1)*Math.floor(Math.abs(t)):t}(r);return Math.min(Math.max(t,0),n)},function(r){var n=this,o=Object(r);if(null==r)throw new TypeError("Array.from requires an array-like object - not null or undefined");var i,a=arguments.length>1?arguments[1]:void 0;if(void 0!==a){if(!t(a))throw new TypeError("Array.from: when provided, the second argument must be a function");arguments.length>2&&(i=arguments[2])}for(var u,f=e(o.length),p=t(n)?Object(new n(f)):new Array(f),c=0;c<f;)u=o[c],p[c]=a?void 0===i?a(u,c):a.call(i,u,c):u,c+=1;return p.length=f,p})),Array.prototype.map||(Array.prototype.map=function(r){var t,n,e;if(null==this)throw new TypeError("this is null or not defined");var o=Object(this),i=o.length>>>0;if("function"!=typeof r)throw new TypeError(r+" is not a function");for(arguments.length>1&&(t=arguments[1]),n=new Array(i),e=0;e<i;){var a,u;e in o&&(a=o[e],u=r.call(t,a,e,o),n[e]=u),e++}return n}),Array.prototype.some||(Array.prototype.some=function(r,t){if(null==this)throw new TypeError("Array.prototype.some called on null or undefined");if("function"!=typeof r)throw new TypeError;for(var n=Object(this),e=n.length>>>0,o=0;o<e;o++)if(o in n&&r.call(t,n[o],o,n))return!0;return!1}),Array.prototype.every||(Array.prototype.every=function(r,t){var n,e;if(null==this)throw new TypeError("this is null or not defined");var o=Object(this),i=o.length>>>0;if("function"!=typeof r&&"[object Function]"!==Object.prototype.toString.call(r))throw new TypeError;for(arguments.length>1&&(n=t),e=0;e<i;){var a;if(e in o)if(a=o[e],!(n?r.call(n,a,e,o):r(a,e,o)))return!1;e++}return!0}),Array.prototype.includes||(Array.prototype.includes=function(r){var t=Object(this),n=parseInt(t.length)||0;if(0===n)return!1;var e,o,i=parseInt(arguments[1])||0;for(i>=0?e=i:(e=n+i)<0&&(e=0);e<n;){if(r===(o=t[e])||r!=r&&o!=o)return!0;e++}return!1}),Array.prototype.flat||Object.defineProperty(Array.prototype,"flat",{configurable:!0,value:function r(){var t=isNaN(arguments[0])?1:Number(arguments[0]);return t?Array.prototype.reduce.call(this,(function(n,e){return Array.isArray(e)?n.push.apply(n,r.call(e,t-1)):n.push(e),n}),[]):Array.prototype.slice.call(this)},writable:!0}),String.prototype.includes||(String.prototype.includes=function(r,t){if(r instanceof RegExp)throw TypeError("first argument must not be a RegExp");return void 0===t&&(t=0),-1!==this.indexOf(r,t)}),Date.now||(Date.now=function(){return(new Date).getTime()}),self.performance||(self.performance={}),!self.performance.now){var o=Date.now();self.performance.now=function(){return Date.now()-o}}if(!window.requestAnimationFrame){var i=Date.now();window.requestAnimationFrame=function(r){if("function"!=typeof r)throw new TypeError(r+"is not a function");var t=Date.now(),n=16+i-t;return n<0&&(n=0),i=t,setTimeout((function(){i=Date.now(),r(performance.now())}),n)},window.cancelAnimationFrame=function(r){clearTimeout(r)}}

demo/src/polyfill.min.js

@@ -1,3 +1,3 @@
-// KUTE.js Polyfill v2.0.14 | 2020 © thednp | MIT-License
+// KUTE.js Polyfill v2.1.1-alpha1 | 2021 © thednp | MIT-License
 "use strict";
-var r,t,n,e;Array.from||(Array.from=(r=Object.prototype.toString,t=function(t){return"function"==typeof t||"[object Function]"===r.call(t)},n=Math.pow(2,53)-1,e=function(r){var t=function(r){var t=Number(r);return isNaN(t)?0:0!==t&&isFinite(t)?(t>0?1:-1)*Math.floor(Math.abs(t)):t}(r);return Math.min(Math.max(t,0),n)},function(r){var n=this,o=Object(r);if(null==r)throw new TypeError("Array.from requires an array-like object - not null or undefined");var i,a=arguments.length>1?arguments[1]:void 0;if(void 0!==a){if(!t(a))throw new TypeError("Array.from: when provided, the second argument must be a function");arguments.length>2&&(i=arguments[2])}for(var u,f=e(o.length),c=t(n)?Object(new n(f)):new Array(f),p=0;p<f;)u=o[p],c[p]=a?void 0===i?a(u,p):a.call(i,u,p):u,p+=1;return c.length=f,c})),Array.prototype.includes||(Array.prototype.includes=function(r){var t=Object(this),n=parseInt(t.length)||0;if(0===n)return!1;var e,o,i=parseInt(arguments[1])||0;for(i>=0?e=i:(e=n+i)<0&&(e=0);e<n;){if(r===(o=t[e])||r!=r&&o!=o)return!0;e++}return!1}),String.prototype.includes||(String.prototype.includes=function(r,t){if(r instanceof RegExp)throw TypeError("first argument must not be a RegExp");return void 0===t&&(t=0),-1!==this.indexOf(r,t)});
+var r,t,e,n;Array.from||(Array.from=(r=Object.prototype.toString,t=function(t){return"function"==typeof t||"[object Function]"===r.call(t)},e=Math.pow(2,53)-1,n=function(r){var t=function(r){var t=Number(r);return isNaN(t)?0:0!==t&&isFinite(t)?(t>0?1:-1)*Math.floor(Math.abs(t)):t}(r);return Math.min(Math.max(t,0),e)},function(r){var e=this,i=Object(r);if(null==r)throw new TypeError("Array.from requires an array-like object - not null or undefined");var o,a=arguments.length>1?arguments[1]:void 0;if(void 0!==a){if(!t(a))throw new TypeError("Array.from: when provided, the second argument must be a function");arguments.length>2&&(o=arguments[2])}for(var u,f=n(i.length),p=t(e)?Object(new e(f)):new Array(f),c=0;c<f;)u=i[c],p[c]=a?void 0===o?a(u,c):a.call(o,u,c):u,c+=1;return p.length=f,p})),Array.prototype.flat||Object.defineProperty(Array.prototype,"flat",{configurable:!0,value:function r(){var t=isNaN(arguments[0])?1:Number(arguments[0]);return t?Array.prototype.reduce.call(this,(function(e,n){return Array.isArray(n)?e.push.apply(e,r.call(n,t-1)):e.push(n),e}),[]):Array.prototype.slice.call(this)},writable:!0}),Array.prototype.includes||(Array.prototype.includes=function(r){var t=Object(this),e=parseInt(t.length)||0;if(0===e)return!1;var n,i,o=parseInt(arguments[1])||0;for(o>=0?n=o:(n=e+o)<0&&(n=0);n<e;){if(r===(i=t[n])||r!=r&&i!=i)return!0;n++}return!1}),String.prototype.includes||(String.prototype.includes=function(r,t){if(r instanceof RegExp)throw TypeError("first argument must not be a RegExp");return void 0===t&&(t=0),-1!==this.indexOf(r,t)}),Number.isFinite||(Number.isFinite=function(r){return"number"==typeof r&&isFinite(r)}),Number.isInteger||(Number.isInteger=function(r){return"number"==typeof r&&isFinite(r)&&Math.floor(r)===r}),Number.isNaN||(Number.isNaN=function(r){return"number"==typeof r&&r!=r});

demo/svgMorph.html

@@ -419,7 +419,8 @@ var tween2 = KUTE.to('#triangle', { path: '#square' }).start();
   <!-- Placed at the end of the document so the pages load faster -->
 
   <script src="./src/polyfill.min.js"></script>
-  <script src="./src/kute.min.js"></script>
+  <!-- <script src="./src/kute.min.js"></script> -->
+  <script src="../dist/kute.js"></script>
   <script src="./assets/js/prism.js"></script>
   <script src="./assets/js/scripts.js"></script>
   <script src="./assets/js/svgMorph.js"></script>

dist/polyfill.js

@@ -1,6 +1,6 @@
 /*!
-  * KUTE.js Polyfill v2.0.14 (http://thednp.github.io/kute.js)
-  * Copyright 2015-2020 © thednp
+  * KUTE.js Polyfill v2.1.1-alpha1 (http://thednp.github.io/kute.js)
+  * Copyright 2015-2021 © thednp
   * Licensed under MIT (https://github.com/thednp/bootstrap.native/blob/master/LICENSE)
   */
  "use strict";
@@ -21,7 +21,8 @@ if (!Array.from) {
       var len = toInteger(value);
       return Math.min(Math.max(len, 0), maxSafeInteger);
     };
-    return function from(arrayLike) {
+
+    return function from(arrayLike/*, mapFn, thisArg */) {
       var C = this, items = Object(arrayLike);
       if (arrayLike == null) {
         throw new TypeError('Array.from requires an array-like object - not null or undefined');
@@ -31,12 +32,14 @@ if (!Array.from) {
         if (!isCallable(mapFn)) {
           throw new TypeError('Array.from: when provided, the second argument must be a function');
         }
+
         if (arguments.length > 2) {
           T = arguments[2];
         }
       }
       var len = toLength(items.length);
       var A = isCallable(C) ? Object(new C(len)) : new Array(len);
+
       var k = 0;
       var kValue;
       while (k < len) {
@@ -54,8 +57,30 @@ if (!Array.from) {
   }());
 }
 
+// https://github.com/jonathantneal/array-flat-polyfill/blob/master/src/polyfill-flat.js
+
+if (!Array.prototype.flat) {
+	Object.defineProperty(Array.prototype, 'flat', {
+		configurable: true,
+		value: function flat () {
+			var depth = isNaN(arguments[0]) ? 1 : Number(arguments[0]);
+
+			return depth ? Array.prototype.reduce.call(this, function (acc, cur) {
+				if (Array.isArray(cur)) {
+					acc.push.apply(acc, flat.call(cur, depth - 1));
+				} else {
+					acc.push(cur);
+				}
+
+				return acc;
+			}, []) : Array.prototype.slice.call(this);
+		},
+		writable: true
+	});
+}
+
 if (!Array.prototype.includes) {
-  Array.prototype.includes = function(searchElement  ) {
+  Array.prototype.includes = function(searchElement /*, fromIndex*/ ) {
     var O = Object(this);
     var len = parseInt(O.length) || 0;
     if (len === 0) {
@@ -91,3 +116,25 @@ if (!String.prototype.includes) {
     return this.indexOf(search, start) !== -1;
   };
 }
+
+if (!Number.isFinite) {
+  Number.isFinite = function(value) {
+    return typeof value === 'number'
+      && isFinite(value);
+  };
+}
+
+if (!Number.isInteger) {
+  Number.isInteger = function(value) {
+    return typeof value === 'number'
+      && isFinite(value)
+      && Math.floor(value) === value;
+  };
+}
+
+if (!Number.isNaN) {
+  Number.isNaN = function(value) {
+    return typeof value === 'number'
+      && value !== value;
+  };
+}

dist/polyfill.min.js

@@ -1,3 +1,3 @@
-// KUTE.js Polyfill v2.0.14 | 2020 © thednp | MIT-License
+// KUTE.js Polyfill v2.1.1-alpha1 | 2021 © thednp | MIT-License
 "use strict";
-var r,t,n,e;Array.from||(Array.from=(r=Object.prototype.toString,t=function(t){return"function"==typeof t||"[object Function]"===r.call(t)},n=Math.pow(2,53)-1,e=function(r){var t=function(r){var t=Number(r);return isNaN(t)?0:0!==t&&isFinite(t)?(t>0?1:-1)*Math.floor(Math.abs(t)):t}(r);return Math.min(Math.max(t,0),n)},function(r){var n=this,o=Object(r);if(null==r)throw new TypeError("Array.from requires an array-like object - not null or undefined");var i,a=arguments.length>1?arguments[1]:void 0;if(void 0!==a){if(!t(a))throw new TypeError("Array.from: when provided, the second argument must be a function");arguments.length>2&&(i=arguments[2])}for(var u,f=e(o.length),c=t(n)?Object(new n(f)):new Array(f),p=0;p<f;)u=o[p],c[p]=a?void 0===i?a(u,p):a.call(i,u,p):u,p+=1;return c.length=f,c})),Array.prototype.includes||(Array.prototype.includes=function(r){var t=Object(this),n=parseInt(t.length)||0;if(0===n)return!1;var e,o,i=parseInt(arguments[1])||0;for(i>=0?e=i:(e=n+i)<0&&(e=0);e<n;){if(r===(o=t[e])||r!=r&&o!=o)return!0;e++}return!1}),String.prototype.includes||(String.prototype.includes=function(r,t){if(r instanceof RegExp)throw TypeError("first argument must not be a RegExp");return void 0===t&&(t=0),-1!==this.indexOf(r,t)});
+var r,t,e,n;Array.from||(Array.from=(r=Object.prototype.toString,t=function(t){return"function"==typeof t||"[object Function]"===r.call(t)},e=Math.pow(2,53)-1,n=function(r){var t=function(r){var t=Number(r);return isNaN(t)?0:0!==t&&isFinite(t)?(t>0?1:-1)*Math.floor(Math.abs(t)):t}(r);return Math.min(Math.max(t,0),e)},function(r){var e=this,i=Object(r);if(null==r)throw new TypeError("Array.from requires an array-like object - not null or undefined");var o,a=arguments.length>1?arguments[1]:void 0;if(void 0!==a){if(!t(a))throw new TypeError("Array.from: when provided, the second argument must be a function");arguments.length>2&&(o=arguments[2])}for(var u,f=n(i.length),p=t(e)?Object(new e(f)):new Array(f),c=0;c<f;)u=i[c],p[c]=a?void 0===o?a(u,c):a.call(o,u,c):u,c+=1;return p.length=f,p})),Array.prototype.flat||Object.defineProperty(Array.prototype,"flat",{configurable:!0,value:function r(){var t=isNaN(arguments[0])?1:Number(arguments[0]);return t?Array.prototype.reduce.call(this,(function(e,n){return Array.isArray(n)?e.push.apply(e,r.call(n,t-1)):e.push(n),e}),[]):Array.prototype.slice.call(this)},writable:!0}),Array.prototype.includes||(Array.prototype.includes=function(r){var t=Object(this),e=parseInt(t.length)||0;if(0===e)return!1;var n,i,o=parseInt(arguments[1])||0;for(o>=0?n=o:(n=e+o)<0&&(n=0);n<e;){if(r===(i=t[n])||r!=r&&i!=i)return!0;n++}return!1}),String.prototype.includes||(String.prototype.includes=function(r,t){if(r instanceof RegExp)throw TypeError("first argument must not be a RegExp");return void 0===t&&(t=0),-1!==this.indexOf(r,t)}),Number.isFinite||(Number.isFinite=function(r){return"number"==typeof r&&isFinite(r)}),Number.isInteger||(Number.isInteger=function(r){return"number"==typeof r&&isFinite(r)&&Math.floor(r)===r}),Number.isNaN||(Number.isNaN=function(r){return"number"==typeof r&&r!=r});

package.json

@@ -1,7 +1,7 @@
 {
   "name": "kute.js",
-  "version": "2.1.0",
-  "description": "JavaScript animation engine of the future is called KUTE.js.",
+  "version": "2.1.1-alpha1",
+  "description": "JavaScript animation engine",
   "main": "dist/kute.min.js",
   "module": "dist/kute.esm.js",
   "jsnext": "src/index.js",
@@ -13,8 +13,11 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "help": "rollup --help",
-    "build": "npm-run-all --parallel copy-build build-*",
+    "build1": "npm-run-all --parallel copy-build build-*",
+    "build": "npm run lint:js && npm-run-all --parallel copy-build build-*",
     "custom": "rollup -c --environment",
+    "fix:js": "eslint src/ --config .eslintrc --fix",
+    "lint:js": "eslint src/ --config .eslintrc",
     "copy-build": "rollup --environment OUTPUTFILE:demo/src/kute.min.js,DIST:standard,MIN:true,FORMAT:umd -c",
     "build-standard": "rollup --environment DIST:standard,MIN:false,FORMAT:umd -c",
     "build-standard-min": "rollup --environment DIST:standard,MIN:true,FORMAT:umd -c",
@@ -54,18 +57,21 @@
   },
   "homepage": "http://thednp.github.io/kute.js",
   "dependencies": {
-    "cubic-bezier-easing": "^1.0.2",
-    "minifill": "^0.0.14",
-    "shorter-js": "^0.1.7",
-    "svg-path-commander": "0.1.0"
+    "cubic-bezier-easing": "^1.0.3-alpha1",
+    "minifill": "^0.0.16",
+    "shorter-js": "^0.2.0-alpha1",
+    "svg-path-commander": "0.1.3-alpha4"
   },
   "devDependencies": {
     "@rollup/plugin-buble": "^0.21.3",
     "@rollup/plugin-json": "^4.1.0",
     "@rollup/plugin-node-resolve": "^9.0.0",
+    "eslint": "^7.22.0",
+    "eslint-config-airbnb-base": "^14.2.1",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-vue": "^7.7.0",
     "npm-run-all": "^4.1.5",
     "rollup": "^2.36.1",
-    "rollup-plugin-cleanup": "^3.2.1",
     "rollup-plugin-terser": "^7.0.2"
   }
 }

rollup.config.js

@@ -2,7 +2,6 @@
 import buble from '@rollup/plugin-buble'
 import {terser} from 'rollup-plugin-terser'
 import node from '@rollup/plugin-node-resolve'
-import cleanup from 'rollup-plugin-cleanup'
 import json from '@rollup/plugin-json'
 import * as pkg from "./package.json"
 
@@ -35,7 +34,6 @@ const PLUGINS = [
   node({mainFields: ['jsnext','module'], dedupe: ['svg-path-commander']}) ,
   json(),
   buble(),
-  cleanup()
 ]
 
 if (MIN){

rollup.polyfill.js

@@ -3,7 +3,6 @@ import buble from '@rollup/plugin-buble'
 import node from '@rollup/plugin-node-resolve'
 import json from '@rollup/plugin-json'
 import {terser} from 'rollup-plugin-terser'
-import cleanup from 'rollup-plugin-cleanup'
 import * as pkg from "./package.json";
 
 // set headers
@@ -34,7 +33,6 @@ const PLUGINS = [
   node(),
   json(),
   buble(),
-  cleanup()
 ]
 
 if (MIN){

src/animation/animation.js

@@ -1,14 +1,14 @@
-import supportedProperties from '../objects/supportedProperties.js'
-import defaultValues from '../objects/defaultValues.js'
-import defaultOptions from '../objects/defaultOptions.js'
-import prepareProperty from '../objects/prepareProperty.js'
-import prepareStart from '../objects/prepareStart.js'
-import onStart from '../objects/onStart.js'
-import onComplete from '../objects/onComplete.js'
-import crossCheck from '../objects/crossCheck.js'
-import linkProperty from '../objects/linkProperty.js'
-import Util from '../objects/util.js'
-import Interpolate from '../objects/interpolate.js'
+import supportedProperties from '../objects/supportedProperties.js';
+import defaultValues from '../objects/defaultValues.js';
+import defaultOptions from '../objects/defaultOptions.js';
+import prepareProperty from '../objects/prepareProperty.js';
+import prepareStart from '../objects/prepareStart.js';
+import onStart from '../objects/onStart.js';
+import onComplete from '../objects/onComplete.js';
+import crossCheck from '../objects/crossCheck.js';
+import linkProperty from '../objects/linkProperty.js';
+import Util from '../objects/util.js';
+import Interpolate from '../objects/interpolate.js';
 
 // Animation class
 // * builds KUTE components
@@ -16,101 +16,120 @@ import Interpolate from '../objects/interpolate.js'
 // * AnimatonBase creates a KUTE.js build for pre-made Tween objects
 // * AnimatonDevelopment can help you debug your new components
 export default class Animation {
-  constructor(Component){
+  constructor(Component) {
     try {
-      if ( Component.component in supportedProperties ) {
-        console.error(`KUTE.js - ${Component.component} already registered`);
-      } else if ( Component.property in defaultValues  ) {
-        console.error(`KUTE.js - ${Component.property} already registered`);
+      if (Component.component in supportedProperties) {
+        throw Error(`KUTE.js - ${Component.component} already registered`);
+      } else if (Component.property in defaultValues) {
+        throw Error(`KUTE.js - ${Component.property} already registered`);
       } else {
-        this.setComponent(Component)
+        this.setComponent(Component);
       }
-    } catch(e){
-      console.error(e)
+    } catch (e) {
+      throw Error(e);
     }
   }
-  setComponent(Component){
-    const propertyInfo = this
-    const ComponentName = Component.component
-    // const Objects = { defaultValues, defaultOptions, Interpolate, linkProperty, Util }
-    const Functions = { prepareProperty, prepareStart, onStart, onComplete, crossCheck }
-    const Category = Component.category
-    const Property = Component.property
-    const Length = Component.properties && Component.properties.length || Component.subProperties && Component.subProperties.length
 
-    // {property,defaultvalue,defaultOptions,Interpolate,functions} // single property
-    // {category,properties,defaultvalues,defaultOptions,Interpolate,functions} // category colors, boxModel, borderRadius
-    // {property,subProperties,defaultvalues,defaultOptions,Interpolate,functions} // property with multiple sub properties. Eg transform, filter
-    // {category,subProperties,defaultvalues,defaultOptions,Interpolate,functions} // property with multiple sub properties. Eg attr
+  setComponent(Component) {
+    const propertyInfo = this;
+    const ComponentName = Component.component;
+    // const Objects = { defaultValues, defaultOptions, Interpolate, linkProperty, Util }
+    const Functions = {
+      prepareProperty, prepareStart, onStart, onComplete, crossCheck,
+    };
+    const Category = Component.category;
+    const Property = Component.property;
+    const Length = (Component.properties && Component.properties.length)
+      || (Component.subProperties && Component.subProperties.length);
+
+    // single property
+    // {property,defaultvalue,defaultOptions,Interpolate,functions}
+
+    // category colors, boxModel, borderRadius
+    // {category,properties,defaultvalues,defaultOptions,Interpolate,functions}
+
+    // property with multiple sub properties. Eg transform, filter
+    // {property,subProperties,defaultvalues,defaultOptions,Interpolate,functions}
+
+    // property with multiple sub properties. Eg htmlAttributes
+    // {category,subProperties,defaultvalues,defaultOptions,Interpolate,functions}
 
     // set supported category/property
-    supportedProperties[ComponentName] = Component.properties || Component.subProperties || Component.property
+    supportedProperties[ComponentName] = Component.properties
+      || Component.subProperties || Component.property;
 
     // set defaultValues
-    if ('defaultValue' in Component){ // value 0 will invalidate
-      defaultValues[ Property ] = Component.defaultValue
+    if ('defaultValue' in Component) { // value 0 will invalidate
+      defaultValues[Property] = Component.defaultValue;
 
       // minimal info
-      propertyInfo.supports = `${Property} property`
-
+      propertyInfo.supports = `${Property} property`;
     } else if (Component.defaultValues) {
-      for (const dv in Component.defaultValues) {
-        defaultValues[dv] = Component.defaultValues[dv]
-      }
+      Object.keys(Component.defaultValues).forEach((dv) => {
+        defaultValues[dv] = Component.defaultValues[dv];
+      });
+
       // minimal info
-      propertyInfo.supports = `${Length||Property} ${Property||Category} properties`
+      propertyInfo.supports = `${Length || Property} ${Property || Category} properties`;
     }
 
     // set additional options
     if (Component.defaultOptions) {
-      for (const op in Component.defaultOptions) {
-        defaultOptions[op] = Component.defaultOptions[op]
-      }
+      Object.keys(Component.defaultOptions).forEach((op) => {
+        defaultOptions[op] = Component.defaultOptions[op];
+      });
     }
 
     // set functions
     if (Component.functions) {
-      for (const fn in Functions) {
+      Object.keys(Functions).forEach((fn) => {
         if (fn in Component.functions) {
-          if (typeof (Component.functions[fn]) === 'function' ) {
-            // !Functions[fn][ Category||Property ] && (Functions[fn][ Category||Property ] = Component.functions[fn])
-            !Functions[fn][ComponentName] && (Functions[fn][ComponentName] = {})
-            !Functions[fn][ComponentName][ Category||Property ] && (Functions[fn][ComponentName][ Category||Property ] = Component.functions[fn])
-          } else {
-            for ( const ofn in Component.functions[fn] ){
-              // !Functions[fn][ofn] && (Functions[fn][ofn] = Component.functions[fn][ofn])
-              !Functions[fn][ComponentName] && (Functions[fn][ComponentName] = {})
-              !Functions[fn][ComponentName][ofn] && (Functions[fn][ComponentName][ofn] = Component.functions[fn][ofn])
+          if (typeof (Component.functions[fn]) === 'function') {
+            // if (!Functions[fn][ Category||Property ]) {
+            //   Functions[fn][ Category||Property ] = Component.functions[fn];
+            // }
+            if (!Functions[fn][ComponentName]) Functions[fn][ComponentName] = {};
+            if (!Functions[fn][ComponentName][Category || Property]) {
+              Functions[fn][ComponentName][Category || Property] = Component.functions[fn];
             }
+          } else {
+            Object.keys(Component.functions[fn]).forEach((ofn) => {
+              // !Functions[fn][ofn] && (Functions[fn][ofn] = Component.functions[fn][ofn])
+              if (!Functions[fn][ComponentName]) Functions[fn][ComponentName] = {};
+              if (!Functions[fn][ComponentName][ofn]) {
+                Functions[fn][ComponentName][ofn] = Component.functions[fn][ofn];
+              }
+            });
           }
         }
-      }
+      });
     }
 
     // set component interpolate
     if (Component.Interpolate) {
-      for (const fni in Component.Interpolate) {
-        const compIntObj = Component.Interpolate[fni]
-        if ( typeof(compIntObj) === 'function' && !Interpolate[fni] ) {
+      Object.keys(Component.Interpolate).forEach((fni) => {
+        const compIntObj = Component.Interpolate[fni];
+        if (typeof (compIntObj) === 'function' && !Interpolate[fni]) {
           Interpolate[fni] = compIntObj;
         } else {
-          for ( const sfn in compIntObj ) {
-            if ( typeof(compIntObj[sfn]) === 'function' && !Interpolate[fni] ) {
+          Object.keys(compIntObj).forEach((sfn) => {
+            if (typeof (compIntObj[sfn]) === 'function' && !Interpolate[fni]) {
               Interpolate[fni] = compIntObj[sfn];
             }
-          }
+          });
         }
-      }
-      linkProperty[ComponentName] = Component.Interpolate
+      });
+
+      linkProperty[ComponentName] = Component.Interpolate;
     }
 
     // set component util
     if (Component.Util) {
-      for (const fnu in Component.Util){
-        !Util[fnu] && (Util[fnu] = Component.Util[fnu])
-      }
+      Object.keys(Component.Util).forEach((fnu) => {
+        if (!Util[fnu]) Util[fnu] = Component.Util[fnu];
+      });
     }
 
-    return propertyInfo
+    return propertyInfo;
   }
 }

src/animation/animationBase.js

@@ -1,76 +1,87 @@
-import supportedProperties from '../objects/supportedProperties.js'
-import defaultOptions from '../objects/defaultOptions.js'
-import onStart from '../objects/onStart.js'
-import onComplete from '../objects/onComplete.js'
-import linkProperty from '../objects/linkProperty.js'
-import Util from '../objects/util.js'
-import Interpolate from '../objects/interpolate.js'
+import supportedProperties from '../objects/supportedProperties.js';
+import defaultOptions from '../objects/defaultOptions.js';
+import onStart from '../objects/onStart.js';
+import onComplete from '../objects/onComplete.js';
+import linkProperty from '../objects/linkProperty.js';
+import Util from '../objects/util.js';
+import Interpolate from '../objects/interpolate.js';
 
 // Animation class
 export default class AnimationBase {
-  constructor(Component){
-    return this.setComponent(Component)
+  constructor(Component) {
+    return this.setComponent(Component);
   }
-  setComponent(Component){
-    const ComponentName = Component.component
+
+  setComponent(Component) {
+    const ComponentName = Component.component;
     // const Objects = { defaultValues, defaultOptions, Interpolate, linkProperty }
-    const Functions = { onStart, onComplete }
-    const Category = Component.category
-    const Property = Component.property
+    const Functions = { onStart, onComplete };
+    const Category = Component.category;
+    const Property = Component.property;
+    // ESLint
+    this._ = 0;
 
     // set supported category/property
-    supportedProperties[ComponentName] = Component.properties || Component.subProperties || Component.property
+    supportedProperties[ComponentName] = Component.properties
+      || Component.subProperties || Component.property;
 
     // set additional options
     if (Component.defaultOptions) {
-      for (const op in Component.defaultOptions) {
-        defaultOptions[op] = Component.defaultOptions[op]
-      }
+      Object.keys(Component.defaultOptions).forEach((op) => {
+        defaultOptions[op] = Component.defaultOptions[op];
+      });
     }
 
     // set functions
     if (Component.functions) {
-      for (const fn in Functions) {
+      Object.keys(Functions).forEach((fn) => {
         if (fn in Component.functions) {
-          if ( typeof (Component.functions[fn]) === 'function'  ) {
-            // !Functions[fn][ Category||Property ] && (Functions[fn][ Category||Property ] = Component.functions[fn])
-            !Functions[fn][ComponentName] && (Functions[fn][ComponentName] = {})
-            !Functions[fn][ComponentName][ Category||Property ] && (Functions[fn][ComponentName][ Category||Property ] = Component.functions[fn])
-          } else {
-            for ( const ofn in Component.functions[fn] ){
-              // !Functions[fn][ofn] && (Functions[fn][ofn] = Component.functions[fn][ofn])
-              !Functions[fn][ComponentName] && (Functions[fn][ComponentName] = {})
-              !Functions[fn][ComponentName][ofn] && (Functions[fn][ComponentName][ofn] = Component.functions[fn][ofn])
+          if (typeof (Component.functions[fn]) === 'function') {
+            // if (!Functions[fn][ Category||Property ]) {
+            //   Functions[fn][ Category||Property ] = Component.functions[fn];
+            // }
+            if (!Functions[fn][ComponentName]) Functions[fn][ComponentName] = {};
+            if (!Functions[fn][ComponentName][Category || Property]) {
+              Functions[fn][ComponentName][Category || Property] = Component.functions[fn];
             }
+          } else {
+            Object.keys(Component.functions[fn]).forEach((ofn) => {
+              // if (!Functions[fn][ofn]) Functions[fn][ofn] = Component.functions[fn][ofn];
+              if (!Functions[fn][ComponentName]) Functions[fn][ComponentName] = {};
+              if (!Functions[fn][ComponentName][ofn]) {
+                Functions[fn][ComponentName][ofn] = Component.functions[fn][ofn];
+              }
+            });
           }
         }
-      }
+      });
     }
 
     // set interpolate
     if (Component.Interpolate) {
-      for (const fni in Component.Interpolate) {
-        const compIntObj = Component.Interpolate[fni]
-        if ( typeof(compIntObj) === 'function' && !Interpolate[fni] ) {
+      Object.keys(Component.Interpolate).forEach((fni) => {
+        const compIntObj = Component.Interpolate[fni];
+        if (typeof (compIntObj) === 'function' && !Interpolate[fni]) {
           Interpolate[fni] = compIntObj;
         } else {
-          for ( const sfn in compIntObj ) {
-            if ( typeof(compIntObj[sfn]) === 'function' && !Interpolate[fni] ) {
+          Object.keys(compIntObj).forEach((sfn) => {
+            if (typeof (compIntObj[sfn]) === 'function' && !Interpolate[fni]) {
               Interpolate[fni] = compIntObj[sfn];
             }
-          }
+          });
         }
-      }
-      linkProperty[ComponentName] = Component.Interpolate
+      });
+
+      linkProperty[ComponentName] = Component.Interpolate;
     }
 
     // set component util
     if (Component.Util) {
-      for (const fnu in Component.Util){
-        !Util[fnu] && (Util[fnu] = Component.Util[fnu])
-      }
+      Object.keys(Component.Util).forEach((fnu) => {
+        if (!Util[fnu]) Util[fnu] = Component.Util[fnu];
+      });
     }
 
-    return {name:ComponentName}
+    return { name: ComponentName };
   }
 }

src/animation/animationDevelopment.js

@@ -1,103 +1,131 @@
-import prepareProperty from '../objects/prepareProperty.js'
-import prepareStart from '../objects/prepareStart.js'
-import onStart from '../objects/onStart.js'
-import onComplete from '../objects/onComplete.js'
-import crossCheck from '../objects/crossCheck.js'
-import Interpolate from '../objects/interpolate.js'
+import prepareProperty from '../objects/prepareProperty.js';
+import prepareStart from '../objects/prepareStart.js';
+import onStart from '../objects/onStart.js';
+import onComplete from '../objects/onComplete.js';
+import crossCheck from '../objects/crossCheck.js';
+import Interpolate from '../objects/interpolate.js';
 
-import Animation from './animation.js'
+import Animation from './animation.js';
 
 // AnimationDevelopment class
 export default class AnimationDevelopment extends Animation {
-  constructor(...args){
-    super(...args)
-  }
-  setComponent(Component){
-    super.setComponent(Component)
+  constructor(...args) {
+    super(...args);
 
-    const propertyInfo = this
+    this.setComponent(...args);
+  }
+
+  setComponent(Component) {
+    super.setComponent(Component);
+
+    const propertyInfo = this;
     // const Objects = { defaultValues, defaultOptions, Interpolate, linkProperty, Util }
-    const Functions = { prepareProperty,prepareStart,onStart,onComplete,crossCheck }
-    const Category = Component.category
-    const Property = Component.property
-    const Length = Component.properties && Component.properties.length || Component.subProperties && Component.subProperties.length
+    const Functions = {
+      prepareProperty, prepareStart, onStart, onComplete, crossCheck,
+    };
+    const Category = Component.category;
+    const Property = Component.property;
+    const Length = (Component.properties && Component.properties.length)
+      || (Component.subProperties && Component.subProperties.length);
 
     // set defaultValues
-    if ('defaultValue' in Component){ // value 0 will invalidate
-
-      propertyInfo.supports = `${Property} property`
-      propertyInfo.defaultValue = `${(Component.defaultValue+'').length?"YES":"not set or incorrect"}`
-
+    if ('defaultValue' in Component) { // value 0 will invalidate
+      propertyInfo.supports = `${Property} property`;
+      propertyInfo.defaultValue = `${(`${Component.defaultValue}`).length ? 'YES' : 'not set or incorrect'}`;
     } else if (Component.defaultValues) {
-      propertyInfo.supports = `${Length||Property} ${Property||Category} properties`
-      propertyInfo.defaultValues = Object.keys(Component.defaultValues).length === Length ? `YES` : `Not set or incomplete`
+      propertyInfo.supports = `${Length || Property} ${Property || Category} properties`;
+      propertyInfo.defaultValues = Object.keys(Component.defaultValues).length === Length ? 'YES' : 'Not set or incomplete';
     }
 
     // set additional options
     if (Component.defaultOptions) {
-      propertyInfo.extends = []
+      propertyInfo.extends = [];
 
-      for (const op in Component.defaultOptions) {
-        propertyInfo.extends.push(op)
+      Object.keys(Component.defaultOptions).forEach((op) => {
+        propertyInfo.extends.push(op);
+      });
+
+      if (propertyInfo.extends.length) {
+        propertyInfo.extends = `with <${propertyInfo.extends.join(', ')}> new option(s)`;
+      } else {
+        delete propertyInfo.extends;
       }
-
-      propertyInfo.extends.length ? propertyInfo.extends = `with <${propertyInfo.extends.join(', ')}> new option(s)` : delete propertyInfo.extends
     }
 
     // set functions
     if (Component.functions) {
-      propertyInfo.interface = []
-      propertyInfo.render = []
-      propertyInfo.warning = []
-      for (const fnf in Functions) {
+      propertyInfo.interface = [];
+      propertyInfo.render = [];
+      propertyInfo.warning = [];
+
+      Object.keys(Functions).forEach((fnf) => {
         if (fnf in Component.functions) {
-          fnf === 'prepareProperty' ? propertyInfo.interface.push(`fromTo()`) : 0
-          fnf === 'prepareStart' ? propertyInfo.interface.push(`to()`) : 0
-          fnf === 'onStart' ? propertyInfo.render = `can render update` : 0
+          if (fnf === 'prepareProperty') propertyInfo.interface.push('fromTo()');
+          if (fnf === 'prepareStart') propertyInfo.interface.push('to()');
+          if (fnf === 'onStart') propertyInfo.render = 'can render update';
         } else {
-          fnf === 'prepareProperty' ? propertyInfo.warning.push(`fromTo()`) : 0
-          fnf === 'prepareStart' ? propertyInfo.warning.push(`to()`) : 0
-          fnf === 'onStart' ? propertyInfo.render = `no function to render update` : 0
+          if (fnf === 'prepareProperty') propertyInfo.warning.push('fromTo()');
+          if (fnf === 'prepareStart') propertyInfo.warning.push('to()');
+          if (fnf === 'onStart') propertyInfo.render = 'no function to render update';
         }
+      });
+
+      if (propertyInfo.interface.length) {
+        propertyInfo.interface = `${Category || Property} can use [${propertyInfo.interface.join(', ')}] method(s)`;
+      } else {
+        delete propertyInfo.uses;
+      }
+
+      if (propertyInfo.warning.length) {
+        propertyInfo.warning = `${Category || Property} can't use [${propertyInfo.warning.join(', ')}] method(s) because values aren't processed`;
+      } else {
+        delete propertyInfo.warning;
       }
-      propertyInfo.interface.length ? propertyInfo.interface = `${Category||Property} can use [${propertyInfo.interface.join(', ')}] method(s)` : delete propertyInfo.uses
-      propertyInfo.warning.length ? propertyInfo.warning = `${Category||Property} can't use [${propertyInfo.warning.join(', ')}] method(s) because values aren't processed` : delete propertyInfo.warning
     }
 
     // register Interpolation functions
     if (Component.Interpolate) {
-      propertyInfo.uses = []
-      propertyInfo.adds = []
+      propertyInfo.uses = [];
+      propertyInfo.adds = [];
 
-      for (let fni in Component.Interpolate) {
-        let compIntObj = Component.Interpolate[fni]
+      Object.keys(Component.Interpolate).forEach((fni) => {
+        const compIntObj = Component.Interpolate[fni];
         // register new Interpolation functions
-        if ( typeof(compIntObj) === 'function' ) {
-          if ( !Interpolate[fni] ) {
-            propertyInfo.adds.push(`${fni}`)
+        if (typeof (compIntObj) === 'function') {
+          if (!Interpolate[fni]) {
+            propertyInfo.adds.push(`${fni}`);
           }
-          propertyInfo.uses.push(`${fni}`)
+          propertyInfo.uses.push(`${fni}`);
         } else {
-          for ( let sfn in compIntObj ) {
-            if ( typeof(compIntObj[sfn]) === 'function' && !Interpolate[fni] ) {
-              propertyInfo.adds.push(`${sfn}`)
+          Object.keys(compIntObj).forEach((sfn) => {
+            if (typeof (compIntObj[sfn]) === 'function' && !Interpolate[fni]) {
+              propertyInfo.adds.push(`${sfn}`);
             }
-            propertyInfo.uses.push(`${sfn}`)
-          }
+            propertyInfo.uses.push(`${sfn}`);
+          });
         }
+      });
+
+      if (propertyInfo.uses.length) {
+        propertyInfo.uses = `[${propertyInfo.uses.join(', ')}] interpolation function(s)`;
+      } else {
+        delete propertyInfo.uses;
       }
 
-      propertyInfo.uses.length ? propertyInfo.uses = `[${propertyInfo.uses.join(', ')}] interpolation function(s)` : delete propertyInfo.uses
-      propertyInfo.adds.length ? propertyInfo.adds = `new [${propertyInfo.adds.join(', ')}] interpolation function(s)` : delete propertyInfo.adds
+      if (propertyInfo.adds.length) {
+        propertyInfo.adds = `new [${propertyInfo.adds.join(', ')}] interpolation function(s)`;
+      } else {
+        delete propertyInfo.adds;
+      }
     } else {
-      propertyInfo.critical = `For ${Property||Category} no interpolation function[s] is set`
+      propertyInfo.critical = `For ${Property || Category} no interpolation function[s] is set`;
     }
 
     // set component util
     if (Component.Util) {
-      propertyInfo.hasUtil = Object.keys(Component.Util).join(',')
+      propertyInfo.hasUtil = Object.keys(Component.Util).join(',');
     }
 
-    return propertyInfo
+    return propertyInfo;
   }
 }

src/components/backgroundPosition.js

@@ -1,46 +1,52 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js'
-import numbers from '../interpolation/numbers.js' 
-import trueDimension from '../util/trueDimension.js'
-import {onStartBgPos} from './backgroundPositionBase.js'
+import defaultValues from '../objects/defaultValues.js';
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import numbers from '../interpolation/numbers.js';
+import trueDimension from '../util/trueDimension.js';
+import { onStartBgPos } from './backgroundPositionBase.js';
 
-// const bgPosProp = { property : 'backgroundPosition', defaultValue: [0,0], interpolators: {numbers} }, functions = { prepareStart, prepareProperty, onStart }
+/* bgPosProp = {
+  property: 'backgroundPosition',
+  defaultValue: [0,0],
+  interpolators: {numbers},
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Component Functions
-function getBgPos(prop){
-  return getStyleForProperty(this.element,prop) || defaultValues[prop];
+function getBgPos(prop/* , value */) {
+  return getStyleForProperty(this.element, prop) || defaultValues[prop];
 }
-function prepareBgPos(prop,value){
-  if ( value instanceof Array ){
-    const x = trueDimension(value[0]).v, 
-          y = trueDimension(value[1]).v;
-    return [ x !== NaN ? x : 50, y !== NaN ? y : 50 ];
-  } else {
-    let posxy = value.replace(/top|left/g,0).replace(/right|bottom/g,100).replace(/center|middle/g,50);
-    posxy = posxy.split(/(\,|\s)/g); 
-    posxy = posxy.length === 2 ? posxy : [posxy[0],50];
-    return [ trueDimension(posxy[0]).v, trueDimension(posxy[1]).v ];
+
+function prepareBgPos(prop, value) {
+  if (value instanceof Array) {
+    const x = trueDimension(value[0]).v;
+    const y = trueDimension(value[1]).v;
+    return [!Number.isNaN(x * 1) ? x : 50, !Number.isNaN(y * 1) ? y : 50];
   }
+
+  let posxy = value.replace(/top|left/g, 0)
+    .replace(/right|bottom/g, 100)
+    .replace(/center|middle/g, 50);
+
+  posxy = posxy.split(/(,|\s)/g);
+  posxy = posxy.length === 2 ? posxy : [posxy[0], 50];
+  return [trueDimension(posxy[0]).v, trueDimension(posxy[1]).v];
 }
 
 // All Component Functions
 const bgPositionFunctions = {
   prepareStart: getBgPos,
   prepareProperty: prepareBgPos,
-  onStart: onStartBgPos
-}
+  onStart: onStartBgPos,
+};
 
 // Component Full Object
 const BackgroundPosition = {
   component: 'backgroundPositionProp',
   property: 'backgroundPosition',
-  defaultValue: [50,50],
-  Interpolate: {numbers},
+  defaultValue: [50, 50],
+  Interpolate: { numbers },
   functions: bgPositionFunctions,
-  Util: {trueDimension}
-}
+  Util: { trueDimension },
+};
 
-export default BackgroundPosition
-
-Components.BackgroundPosition = BackgroundPosition
+export default BackgroundPosition;

src/components/backgroundPositionBase.js

@@ -1,14 +1,19 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
 
-// const bgPosProp = { property : 'backgroundPosition', defaultValue: [0,0], interpolators: {numbers} }, functions = { prepareStart, prepareProperty, onStart }
+/* bgPosProp = {
+  property: 'backgroundPosition',
+  defaultValue: [0,0],
+  interpolators: {numbers},
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Component Functions
-export function onStartBgPos(prop){
-  if ( this.valuesEnd[prop] && !KUTE[prop]) { // opacity could be 0
+export function onStartBgPos(prop) {
+  if (this.valuesEnd[prop] && !KUTE[prop]) {
     KUTE[prop] = (elem, a, b, v) => {
-      elem.style[prop] = `${(numbers(a[0],b[0],v)*100>>0)/100}%  ${((numbers(a[1],b[1],v)*100>>0)/100)}%`;
-    }
+      elem.style[prop] = `${(numbers(a[0], b[0], v) * 100 >> 0) / 100}%  ${((numbers(a[1], b[1], v) * 100 >> 0) / 100)}%`;
+    };
   }
 }
 
@@ -16,7 +21,7 @@ export function onStartBgPos(prop){
 const baseBgPosOps = {
   component: 'baseBackgroundPosition',
   property: 'backgroundPosition',
-  Interpolate: {numbers},
-  functions: {onStart: onStartBgPos}
-}
-export default baseBgPosOps
+  Interpolate: { numbers },
+  functions: { onStart: onStartBgPos },
+};
+export default baseBgPosOps;

src/components/borderRadius.js

@@ -1,27 +1,34 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js'
-import trueDimension from '../util/trueDimension.js'
-import units from '../interpolation/units.js' 
-import {radiusOnStartFn} from './borderRadiusBase.js'
+import defaultValues from '../objects/defaultValues.js';
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import trueDimension from '../util/trueDimension.js';
+import units from '../interpolation/units.js';
+import { radiusOnStartFn } from './borderRadiusBase.js';
 
-// const borderRadius = { category : 'borderRadius', properties : [..], defaultValues: {..}, interpolation: {units} }
+/* borderRadius = {
+  category: 'borderRadius',
+  properties : [..],
+  defaultValues: {..},
+  interpolation: {units}
+} */
 
 // Component Properties
-const radiusProps = ['borderRadius', 'borderTopLeftRadius', 'borderTopRightRadius', 'borderBottomLeftRadius', 'borderBottomRightRadius']
-const radiusValues = {}
+const radiusProps = ['borderRadius',
+  'borderTopLeftRadius', 'borderTopRightRadius', 'borderBottomLeftRadius', 'borderBottomRightRadius'];
 
-radiusProps.map(x => radiusValues[x] = 0);
+const radiusValues = {};
+radiusProps.forEach((x) => { radiusValues[x] = 0; });
 
 // Component Functions
-const radiusOnStart = {}
-radiusProps.forEach(tweenProp => {
-  radiusOnStart[tweenProp] = radiusOnStartFn
+const radiusOnStart = {};
+radiusProps.forEach((tweenProp) => {
+  radiusOnStart[tweenProp] = radiusOnStartFn;
 });
-export function getRadius(tweenProp){
-  return getStyleForProperty(this.element,tweenProp) || defaultValues[tweenProp];
+
+export function getRadius(tweenProp) {
+  return getStyleForProperty(this.element, tweenProp) || defaultValues[tweenProp];
 }
-export function prepareRadius(tweenProp,value){
+
+export function prepareRadius(tweenProp, value) {
   return trueDimension(value);
 }
 
@@ -29,8 +36,8 @@ export function prepareRadius(tweenProp,value){
 export const radiusFunctions = {
   prepareStart: getRadius,
   prepareProperty: prepareRadius,
-  onStart: radiusOnStart
-}
+  onStart: radiusOnStart,
+};
 
 // Full Component
 const BorderRadius = {
@@ -38,11 +45,9 @@ const BorderRadius = {
   category: 'borderRadius',
   properties: radiusProps,
   defaultValues: radiusValues,
-  Interpolate: {units},
+  Interpolate: { units },
   functions: radiusFunctions,
-  Util: {trueDimension}
-}
+  Util: { trueDimension },
+};
 
-export default BorderRadius
-
-Components.BorderRadiusProperties = BorderRadius
+export default BorderRadius;

src/components/borderRadiusBase.js

@@ -1,29 +1,35 @@
-import KUTE from '../objects/kute.js'
-import units from '../interpolation/units.js' 
+import KUTE from '../objects/kute.js';
+import units from '../interpolation/units.js';
 
-// const borderRadius = { category : 'borderRadius', properties : [..], defaultValues: {..}, interpolation: {units} }
+/* borderRadius = {
+  category: 'borderRadius',
+  properties : [..],
+  defaultValues: {..},
+  interpolation: {units}
+} */
 
 // Component Properties
-const radiusProps = ['borderRadius', 'borderTopLeftRadius', 'borderTopRightRadius', 'borderBottomLeftRadius', 'borderBottomRightRadius']
+const radiusProps = ['borderRadius',
+  'borderTopLeftRadius', 'borderTopRightRadius', 'borderBottomLeftRadius', 'borderBottomRightRadius'];
 
 // Component Functions
-export function radiusOnStartFn(tweenProp){
+export function radiusOnStartFn(tweenProp) {
   if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      elem.style[tweenProp] = units(a.v,b.v,b.u,v);
-    }
+      elem.style[tweenProp] = units(a.v, b.v, b.u, v);
+    };
   }
 }
-const radiusOnStart = {}
-radiusProps.forEach(tweenProp => {
-  radiusOnStart[tweenProp] = radiusOnStartFn
+const radiusOnStart = {};
+radiusProps.forEach((tweenProp) => {
+  radiusOnStart[tweenProp] = radiusOnStartFn;
 });
 
 // Base Component
 const baseBorderRadius = {
   component: 'baseBorderRadius',
   category: 'borderRadius',
-  Interpolate: {units},
-  functions: {onStart: radiusOnStart}
-}
-export default baseBorderRadius
+  Interpolate: { units },
+  functions: { onStart: radiusOnStart },
+};
+export default baseBorderRadius;

src/components/boxModel.js

@@ -1,35 +1,36 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js' 
-import trueDimension from '../util/trueDimension.js' 
-import numbers from '../interpolation/numbers.js' 
-import {boxModelOnStart} from './boxModelBase.js'
+import defaultValues from '../objects/defaultValues.js';
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import trueDimension from '../util/trueDimension.js';
+import numbers from '../interpolation/numbers.js';
+import { boxModelOnStart } from './boxModelBase.js';
 
 // Component Properties
 const boxModelProperties = ['top', 'left', 'width', 'height', 'right', 'bottom', 'minWidth', 'minHeight', 'maxWidth', 'maxHeight',
-                          'padding', 'paddingTop','paddingBottom', 'paddingLeft', 'paddingRight', 
-                          'margin', 'marginTop','marginBottom', 'marginLeft', 'marginRight', 
-                          'borderWidth', 'borderTopWidth', 'borderRightWidth', 'borderBottomWidth', 'borderLeftWidth', 'outlineWidth']
-const boxModelValues = {}
-boxModelProperties.map(x => boxModelValues[x] = 0);
+  'padding', 'paddingTop', 'paddingBottom', 'paddingLeft', 'paddingRight',
+  'margin', 'marginTop', 'marginBottom', 'marginLeft', 'marginRight',
+  'borderWidth', 'borderTopWidth', 'borderRightWidth', 'borderBottomWidth', 'borderLeftWidth', 'outlineWidth'];
+
+const boxModelValues = {};
+boxModelProperties.forEach((x) => { boxModelValues[x] = 0; });
 
 // Component Functions
-function getBoxModel(tweenProp){
-  return getStyleForProperty(this.element,tweenProp) || defaultValues[tweenProp];
+function getBoxModel(tweenProp) {
+  return getStyleForProperty(this.element, tweenProp) || defaultValues[tweenProp];
 }
-function prepareBoxModel(tweenProp,value){
-  const boxValue = trueDimension(value), offsetProp = tweenProp === 'height' ? 'offsetHeight' : 'offsetWidth';
-  return boxValue.u === '%' ? boxValue.v * this.element[offsetProp] / 100 : boxValue.v;
+function prepareBoxModel(tweenProp, value) {
+  const boxValue = trueDimension(value); const
+    offsetProp = tweenProp === 'height' ? 'offsetHeight' : 'offsetWidth';
+  return boxValue.u === '%' ? (boxValue.v * this.element[offsetProp]) / 100 : boxValue.v;
 }
-const boxPropsOnStart = {}
-boxModelProperties.map(x => boxPropsOnStart[x] = boxModelOnStart );
+const boxPropsOnStart = {};
+boxModelProperties.forEach((x) => { boxPropsOnStart[x] = boxModelOnStart; });
 
 // All Component Functions
 const boxModelFunctions = {
   prepareStart: getBoxModel,
   prepareProperty: prepareBoxModel,
-  onStart: boxPropsOnStart
-}
+  onStart: boxPropsOnStart,
+};
 
 // Component Full Component
 const boxModel = {
@@ -37,10 +38,8 @@ const boxModel = {
   category: 'boxModel',
   properties: boxModelProperties,
   defaultValues: boxModelValues,
-  Interpolate: {numbers},
-  functions: boxModelFunctions
-}
+  Interpolate: { numbers },
+  functions: boxModelFunctions,
+};
 
-export default boxModel
-
-Components.BoxModelProperties = boxModel
+export default boxModel;

src/components/boxModelBase.js

@@ -1,28 +1,29 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
 
 // Component Functions
-export function boxModelOnStart(tweenProp){
+export function boxModelOnStart(tweenProp) {
   if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      elem.style[tweenProp] = `${v > 0.99 || v < 0.01 ? ((numbers(a,b,v)*10)>>0)/10 : (numbers(a,b,v) ) >> 0}px`;
-      // elem.style[tweenProp] = `${(numbers(a,b,v) ) >> 0}px`;
-    }
+      elem.style[tweenProp] = `${v > 0.99 || v < 0.01
+        ? ((numbers(a, b, v) * 10) >> 0) / 10
+        : (numbers(a, b, v)) >> 0}px`;
+    };
   }
 }
 
 // Component Base Props
-const baseBoxProps = ['top','left','width','height']
-const baseBoxOnStart = {}
-baseBoxProps.map(x=>baseBoxOnStart[x] = boxModelOnStart)
+const baseBoxProps = ['top', 'left', 'width', 'height'];
+const baseBoxOnStart = {};
+baseBoxProps.forEach((x) => { baseBoxOnStart[x] = boxModelOnStart; });
 
 // Component Base
 const baseBoxModel = {
   component: 'baseBoxModel',
   category: 'boxModel',
   properties: baseBoxProps,
-  Interpolate: {numbers},
-  functions: {onStart: baseBoxOnStart}
-}
+  Interpolate: { numbers },
+  functions: { onStart: baseBoxOnStart },
+};
 
-export default baseBoxModel
+export default baseBoxModel;

src/components/boxModelEssential.js

@@ -1,32 +1,34 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js' 
-import trueDimension from '../util/trueDimension.js' 
-import numbers from '../interpolation/numbers.js' 
-import {boxModelOnStart} from './boxModelBase.js' 
-
+import defaultValues from '../objects/defaultValues.js';
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import trueDimension from '../util/trueDimension.js';
+import numbers from '../interpolation/numbers.js';
+import { boxModelOnStart } from './boxModelBase.js';
 
 // Component Functions
-function getBoxModel(tweenProp){
-  return getStyleForProperty(this.element,tweenProp) || defaultValues[tweenProp];
+function getBoxModel(tweenProp) {
+  return getStyleForProperty(this.element, tweenProp) || defaultValues[tweenProp];
 }
-function prepareBoxModel(tweenProp,value){
-  const boxValue = trueDimension(value), offsetProp = tweenProp === 'height' ? 'offsetHeight' : 'offsetWidth';
-  return boxValue.u === '%' ? boxValue.v * this.element[offsetProp] / 100 : boxValue.v;
+function prepareBoxModel(tweenProp, value) {
+  const boxValue = trueDimension(value);
+  const offsetProp = tweenProp === 'height' ? 'offsetHeight' : 'offsetWidth';
+  return boxValue.u === '%' ? (boxValue.v * this.element[offsetProp]) / 100 : boxValue.v;
 }
 
 // Component Base Props
-const essentialBoxProps = ['top','left','width','height']
-const essentialBoxPropsValues = {top:0,left:0,width:0,height:0}
-const essentialBoxOnStart = {}
-essentialBoxProps.map(x=>essentialBoxOnStart[x] = boxModelOnStart)
+const essentialBoxProps = ['top', 'left', 'width', 'height'];
+const essentialBoxPropsValues = {
+  top: 0, left: 0, width: 0, height: 0,
+};
+
+const essentialBoxOnStart = {};
+essentialBoxProps.forEach((x) => { essentialBoxOnStart[x] = boxModelOnStart; });
 
 // All Component Functions
 const essentialBoxModelFunctions = {
   prepareStart: getBoxModel,
   prepareProperty: prepareBoxModel,
-  onStart: essentialBoxOnStart
-}
+  onStart: essentialBoxOnStart,
+};
 
 // Component Essential
 const essentialBoxModel = {
@@ -34,11 +36,9 @@ const essentialBoxModel = {
   category: 'boxModel',
   properties: essentialBoxProps,
   defaultValues: essentialBoxPropsValues,
-  Interpolate: {numbers},
+  Interpolate: { numbers },
   functions: essentialBoxModelFunctions,
-  Util:{trueDimension}
-}
+  Util: { trueDimension },
+};
 
-export default essentialBoxModel
-
-Components.BoxModelEssential = essentialBoxModel
+export default essentialBoxModel;

src/components/clipProperty.js

@@ -1,43 +1,39 @@
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js' 
-import trueDimension from '../util/trueDimension.js' 
-import numbers from '../interpolation/numbers.js' 
-import {onStartClip} from './clipPropertyBase.js'
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import trueDimension from '../util/trueDimension.js';
+import numbers from '../interpolation/numbers.js';
+import { onStartClip } from './clipPropertyBase.js';
 
 // Component Functions
-function getClip(tweenProp,v){
-  const currentClip = getStyleForProperty(this.element,tweenProp), 
-        width = getStyleForProperty(this.element,'width'), 
-        height = getStyleForProperty(this.element,'height');
+function getClip(tweenProp/* , value */) {
+  const currentClip = getStyleForProperty(this.element, tweenProp);
+  const width = getStyleForProperty(this.element, 'width');
+  const height = getStyleForProperty(this.element, 'height');
   return !/rect/.test(currentClip) ? [0, width, height, 0] : currentClip;
 }
-function prepareClip(tweenProp,value) {
-  if ( value instanceof Array ){
-    return [ trueDimension(value[0]), trueDimension(value[1]), trueDimension(value[2]), trueDimension(value[3]) ];
-  } else {
-    var clipValue = value.replace(/rect|\(|\)/g,'');
-    clipValue = /\,/g.test(clipValue) ? clipValue.split(/\,/g) : clipValue.split(/\s/g);
-    return [ trueDimension(clipValue[0]),  trueDimension(clipValue[1]), trueDimension(clipValue[2]),  trueDimension(clipValue[3]) ];
+function prepareClip(tweenProp, value) {
+  if (value instanceof Array) {
+    return value.map((x) => trueDimension(x));
   }
+  let clipValue = value.replace(/rect|\(|\)/g, '');
+  clipValue = /,/g.test(clipValue) ? clipValue.split(',') : clipValue.split(/\s/);
+  return clipValue.map((x) => trueDimension(x));
 }
 
 // All Component Functions
 const clipFunctions = {
   prepareStart: getClip,
   prepareProperty: prepareClip,
-  onStart: onStartClip
-}
+  onStart: onStartClip,
+};
 
 // Component Full
- const clipProperty = {
+const clipProperty = {
   component: 'clipProperty',
   property: 'clip',
-  defaultValue: [0,0,0,0],
-  Interpolate: {numbers},
+  defaultValue: [0, 0, 0, 0],
+  Interpolate: { numbers },
   functions: clipFunctions,
-  Util: {trueDimension}
-}
+  Util: { trueDimension },
+};
 
-export default clipProperty
-
-Components.ClipProperty = clipProperty
+export default clipProperty;

src/components/clipPropertyBase.js

@@ -1,17 +1,19 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
 
 // Component Functions
 export function onStartClip(tweenProp) {
-  if ( this.valuesEnd[tweenProp] && !KUTE[tweenProp]) { 
+  if (this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      var h = 0, cl = [];
-      for (h;h<4;h++){
-        var c1 = a[h].v, c2 = b[h].v, cu = b[h].u || 'px';
-        cl[h] = ((numbers(c1,c2,v)*100 >> 0)/100) + cu;
+      let h = 0; const
+        cl = [];
+      for (h; h < 4; h += 1) {
+        const c1 = a[h].v; const c2 = b[h].v; const
+          cu = b[h].u || 'px';
+        cl[h] = ((numbers(c1, c2, v) * 100 >> 0) / 100) + cu;
       }
       elem.style.clip = `rect(${cl})`;
-    }
+    };
   }
 }
 
@@ -20,8 +22,8 @@ const baseClip = {
   component: 'baseClip',
   property: 'clip',
   // defaultValue: [0,0,0,0],
-  Interpolate: {numbers},
-  functions: {onStart:onStartClip}
-}
+  Interpolate: { numbers },
+  functions: { onStart: onStartClip },
+};
 
-export default baseClip
+export default baseClip;

src/components/colorProperties.js

@@ -1,30 +1,31 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js' 
-import trueColor from '../util/trueColor.js' 
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js' 
-import {onStartColors} from './colorPropertiesBase.js' 
+import defaultValues from '../objects/defaultValues.js';
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import trueColor from '../util/trueColor.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
+import { onStartColors } from './colorPropertiesBase.js';
 
 // Component Interpolation
 // Component Properties
 // supported formats
 // 'hex', 'rgb', 'rgba' '#fff' 'rgb(0,0,0)' / 'rgba(0,0,0,0)' 'red' (IE9+)
-const supportedColors = ['color', 'backgroundColor','borderColor', 'borderTopColor', 'borderRightColor', 'borderBottomColor', 'borderLeftColor', 'outlineColor']
-const defaultColors = {}
+const supportedColors = ['color', 'backgroundColor', 'borderColor', 'borderTopColor', 'borderRightColor', 'borderBottomColor', 'borderLeftColor', 'outlineColor'];
 
-supportedColors.map(tweenProp => {
-  defaultColors[tweenProp] = '#000'
+const defaultColors = {};
+supportedColors.forEach((tweenProp) => {
+  defaultColors[tweenProp] = '#000';
 });
 
 // Component Functions
-const colorsOnStart = {}
-supportedColors.map(x => colorsOnStart[x] = onStartColors)
+const colorsOnStart = {};
+supportedColors.forEach((x) => {
+  colorsOnStart[x] = onStartColors;
+});
 
-function getColor(prop,value) {
-  return getStyleForProperty(this.element,prop) || defaultValues[prop];
+function getColor(prop/* , value */) {
+  return getStyleForProperty(this.element, prop) || defaultValues[prop];
 }
-function prepareColor(prop,value) {
+function prepareColor(prop, value) {
   return trueColor(value);
 }
 
@@ -32,8 +33,8 @@ function prepareColor(prop,value) {
 const colorFunctions = {
   prepareStart: getColor,
   prepareProperty: prepareColor,
-  onStart: colorsOnStart
-}
+  onStart: colorsOnStart,
+};
 
 // Component Full
 const colorProperties = {
@@ -41,11 +42,9 @@ const colorProperties = {
   category: 'colors',
   properties: supportedColors,
   defaultValues: defaultColors,
-  Interpolate: {numbers,colors},
+  Interpolate: { numbers, colors },
   functions: colorFunctions,
-  Util: {trueColor}
-}
+  Util: { trueColor },
+};
 
-export default colorProperties
-
-Components.ColorProperties = colorProperties
+export default colorProperties;

src/components/colorPropertiesBase.js

@@ -1,26 +1,27 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
 
 // Component Interpolation
 // rgba1, rgba2, progress
 
-
 // Component Properties
 // supported formats
 // 'hex', 'rgb', 'rgba' '#fff' 'rgb(0,0,0)' / 'rgba(0,0,0,0)' 'red' (IE9+)
-const supportedColors = ['color', 'backgroundColor','borderColor', 'borderTopColor', 'borderRightColor', 'borderBottomColor', 'borderLeftColor', 'outlineColor']
+const supportedColors = ['color', 'backgroundColor', 'borderColor',
+  'borderTopColor', 'borderRightColor', 'borderBottomColor', 'borderLeftColor', 'outlineColor'];
 
 // Component Functions
-export function onStartColors(tweenProp){
+export function onStartColors(tweenProp) {
   if (this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      elem.style[tweenProp] = colors(a,b,v);
-    }
+      elem.style[tweenProp] = colors(a, b, v);
+    };
   }
 }
-const colorsOnStart = {}
-supportedColors.map(x => colorsOnStart[x] = onStartColors)
+
+const colorsOnStart = {};
+supportedColors.forEach((x) => { colorsOnStart[x] = onStartColors; });
 
 // Component Base
 export const baseColors = {
@@ -28,8 +29,8 @@ export const baseColors = {
   category: 'colors',
   // properties: supportedColors,
   // defaultValues: defaultColors,
-  Interpolate: {numbers,colors},
-  functions: {onStart:colorsOnStart}
-}
+  Interpolate: { numbers, colors },
+  functions: { onStart: colorsOnStart },
+};
 
-export default baseColors
+export default baseColors;

src/components/crossBrowserMove.js

@@ -1,50 +1,52 @@
-import KUTE from '../objects/kute.js'
-import getInlineStyle from '../process/getInlineStyle.js'
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import trueProperty from '../util/trueProperty.js'
-import numbers from '../interpolation/numbers.js' 
+import KUTE from '../objects/kute.js';
+import getInlineStyle from '../process/getInlineStyle.js';
+import defaultValues from '../objects/defaultValues.js';
+import trueProperty from '../util/trueProperty.js';
+import numbers from '../interpolation/numbers.js';
 
 // Component Const
 const transformProperty = trueProperty('transform');
 const supportTransform = transformProperty in document.body.style ? 1 : 0;
 
 // Component Functions
-function getComponentCurrentValue(tweenProp,value){
-  let currentTransform = getInlineStyle(this.element);
-  let left = this.element.style.left;
-  let top = this.element.style.top;
-  let x = supportTransform && currentTransform.translate ? currentTransform.translate[0]
-                          : isFinite(left*1) ? left 
-                          : defaultValues.move[0];
-  let y = supportTransform && currentTransform.translate ? currentTransform.translate[1]
-                          : isFinite(top*1) ? top 
-                          : defaultValues.move[1];
-  return [x,y]
-}
-function prepareComponentValue(tweenProp,value){
-  let x = isFinite(value*1) ? parseInt(value) : parseInt(value[0]) || 0;
-  let y = parseInt(value[1]) || 0;
+function getComponentCurrentValue(/* tweenProp, value */) {
+  const currentTransform = getInlineStyle(this.element);
+  const { left } = this.element.style;
+  const { top } = this.element.style;
+  let x = 0;
+  let y = 0;
 
-  return [ x, y ]
+  if (supportTransform && currentTransform.translate) {
+    [x, y] = currentTransform.translate;
+  } else {
+    x = Number.isFinite(left * 1) ? left : defaultValues.move[0];
+    y = Number.isFinite(top * 1) ? top : defaultValues.move[1];
+  }
+
+  return [x, y];
+}
+function prepareComponentValue(tweenProp, value) {
+  const x = Number.isFinite(value * 1) ? parseInt(value, 10) : parseInt(value[0], 10) || 0;
+  const y = parseInt(value[1], 10) || 0;
+
+  return [x, y];
 }
 
-export function onStartComponent(tweenProp,value){
+export function onStartComponent(tweenProp/* , value */) {
   if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
-
-    if (supportTransform){
+    if (supportTransform) {
       KUTE[tweenProp] = (elem, a, b, v) => {
-        elem.style[transformProperty] = 'translate('+numbers(a[0],b[0],v)+'px,'+numbers(a[1],b[1],v)+'px)';
-      }
+        elem.style[transformProperty] = `translate(${numbers(a[0], b[0], v)}px,${numbers(a[1], b[1], v)}px)`;
+      };
     } else {
       KUTE[tweenProp] = (elem, a, b, v) => {
-        if (a[0]||b[0]) {
-          elem.style.left = numbers(a[0],b[0],v)+'px';
+        if (a[0] || b[0]) {
+          elem.style.left = `${numbers(a[0], b[0], v)}px`;
         }
-        if (a[1]||b[1]) {
-          elem.style.top = numbers(a[1],b[1],v)+'px';
+        if (a[1] || b[1]) {
+          elem.style.top = `${numbers(a[1], b[1], v)}px`;
         }
-      }
+      };
     }
   }
 }
@@ -53,27 +55,25 @@ export function onStartComponent(tweenProp,value){
 const componentFunctions = {
   prepareStart: getComponentCurrentValue,
   prepareProperty: prepareComponentValue,
-  onStart: onStartComponent
-}
+  onStart: onStartComponent,
+};
 
 // Base Component
 export const baseCrossBrowserMove = {
   component: 'baseCrossBrowserMove',
   property: 'move',
-  Interpolate: {numbers},
-  functions: {onStart:onStartComponent}
-}
+  Interpolate: { numbers },
+  functions: { onStart: onStartComponent },
+};
 
 // Full Component
 const crossBrowserMove = {
   component: 'crossBrowserMove',
   property: 'move',
-  defaultValue: [0,0],
-  Interpolate: {numbers},
+  defaultValue: [0, 0],
+  Interpolate: { numbers },
   functions: componentFunctions,
-  Util: {trueProperty}
-}
+  Util: { trueProperty },
+};
 
-export default crossBrowserMove
-
-Components.CrossBrowserMove = crossBrowserMove
+export default crossBrowserMove;

src/components/filterEffects.js

@@ -1,29 +1,34 @@
-import getStyleForProperty from '../process/getStyleForProperty.js'
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import trueColor from '../util/trueColor.js'
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js'
-import {dropShadow,onStartFilter} from './filterEffectsBase.js'
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import defaultValues from '../objects/defaultValues.js';
+import trueColor from '../util/trueColor.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
+import { dropShadow, onStartFilter } from './filterEffectsBase.js';
 
-// const filterEffects = { property : 'filter', subProperties: {}, defaultValue: {}, interpolators: {} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* filterEffects = {
+  property: 'filter',
+  subProperties: {},
+  defaultValue: {},
+  interpolators: {},
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component Util
-function replaceDashNamespace(str){
-  return str.replace('-r','R').replace('-s','S')
+function replaceDashNamespace(str) {
+  return str.replace('-r', 'R').replace('-s', 'S');
 }
 
-function parseDropShadow (shadow){
-  let newShadow
+function parseDropShadow(shadow) {
+  let newShadow;
 
   if (shadow.length === 3) { // [h-shadow, v-shadow, color]
-    newShadow = [shadow[0], shadow[1], 0, shadow[2] ];
+    newShadow = [shadow[0], shadow[1], 0, shadow[2]];
   } else if (shadow.length === 4) { // ideal [<offset-x>, <offset-y>, <blur-radius>, <color>]
     newShadow = [shadow[0], shadow[1], shadow[2], shadow[3]];
   }
 
   // make sure the values are ready to tween
-  for (let i=0;i<3;i++){
+  for (let i = 0; i < 3; i += 1) {
     newShadow[i] = parseFloat(newShadow[i]);
   }
   // also the color must be a rgb object
@@ -31,71 +36,85 @@ function parseDropShadow (shadow){
   return newShadow;
 }
 
-function parseFilterString(currentStyle){
-  let result = {}
-  let fnReg = /(([a-z].*?)\(.*?\))(?=\s([a-z].*?)\(.*?\)|\s*$)/g
-  let matches = currentStyle.match(fnReg);
-  const fnArray = currentStyle !== 'none' ? matches : 'none'
+function parseFilterString(currentStyle) {
+  const result = {};
+  const fnReg = /(([a-z].*?)\(.*?\))(?=\s([a-z].*?)\(.*?\)|\s*$)/g;
+  const matches = currentStyle.match(fnReg);
+  const fnArray = currentStyle !== 'none' ? matches : 'none';
 
   if (fnArray instanceof Array) {
-    for (let j=0, jl = fnArray.length; j<jl; j++){
-      let p = fnArray[j].trim().split(/\((.+)/);
-      let pp = replaceDashNamespace(p[0]);
-      if ( pp === 'dropShadow' ) {
-        let shadowColor = p[1].match(/(([a-z].*?)\(.*?\))(?=\s(.*?))/)[0]
-        let params = p[1].replace(shadowColor,'').split(/\s/).map(parseFloat)
-        result[pp] = params.filter((el)=>!isNaN(el)).concat(shadowColor);
+    for (let j = 0, jl = fnArray.length; j < jl; j += 1) {
+      const p = fnArray[j].trim().split(/\((.+)/);
+      const pp = replaceDashNamespace(p[0]);
+      if (pp === 'dropShadow') {
+        const shadowColor = p[1].match(/(([a-z].*?)\(.*?\))(?=\s(.*?))/)[0];
+        const params = p[1].replace(shadowColor, '').split(/\s/).map(parseFloat);
+        result[pp] = params.filter((el) => !Number.isNaN(el)).concat(shadowColor);
       } else {
-        result[pp] = p[1].replace(/\'|\"|\)/g,'');
+        result[pp] = p[1].replace(/'|"|\)/g, '');
       }
     }
   }
-  return result
+
+  return result;
 }
 
 // Component Functions
-function getFilter(tweenProp,value) {
-  let currentStyle = getStyleForProperty(this.element,tweenProp),
-      filterObject = parseFilterString(currentStyle), fnp
+function getFilter(tweenProp, value) {
+  const currentStyle = getStyleForProperty(this.element, tweenProp);
+  const filterObject = parseFilterString(currentStyle);
+  let fnp;
 
-  for (let fn in value){
-    fnp = replaceDashNamespace(fn)
-    if ( !filterObject[fnp] ){
-      filterObject[fnp] = defaultValues[tweenProp][fn]
+  Object.keys(value).forEach((fn) => {
+    fnp = replaceDashNamespace(fn);
+    if (!filterObject[fnp]) {
+      filterObject[fnp] = defaultValues[tweenProp][fn];
     }
-  }
+  });
+
   return filterObject;
 }
-function prepareFilter(tweenProp,value) {
-  let filterObject = {}, fnp
+function prepareFilter(tweenProp, value) {
+  const filterObject = {};
+  let fnp;
 
-  // {opacity: [0-100%], blur: [0-Nem], saturate: [0-N%], invert: 0, grayscale: [0-100%], brightness: [0-N%], contrast: [0-N%], sepia: [0-N%], 'hueRotate': [0-Ndeg], 'dropShadow': [0,0,0,(r:0,g:0,b:0)], url:''},
-  // {opacity: 100,      blur: 0,       saturate: 100,    invert: 0, grayscale: 0,        brightness: 100,    contrast: 100,    sepia: 0,      'hueRotate':0,         'dropShadow': 0,                     url:''},
+  // property: range | default
+  // opacity: [0-100%] | 100
+  // blur: [0-Nem] | 0
+  // saturate: [0-N%] | 100
+  // invert: [0-100%] | 0
+  // grayscale: [0-100%] | 0
+  // brightness: [0-N%] | 100
+  // contrast: [0-N%] | 100
+  // sepia: [0-N%] | 0
+  // 'hueRotate': [0-Ndeg] | 0
+  // 'dropShadow': [0,0,0,(r:0,g:0,b:0)] | 0
+  // url: '' | ''
 
-  for (let fn in value){
-    fnp = replaceDashNamespace(fn)
-    if ( /hue/.test(fn) ) {
-      filterObject[fnp] = parseFloat(value[fn])      
-    } else if ( /drop/.test(fn)  ) {
-      filterObject[fnp] = parseDropShadow(value[fn])
-    } else if ( fn === 'url' ) {
-      filterObject[fn] = value[fn]
+  Object.keys(value).forEach((fn) => {
+    fnp = replaceDashNamespace(fn);
+    if (/hue/.test(fn)) {
+      filterObject[fnp] = parseFloat(value[fn]);
+    } else if (/drop/.test(fn)) {
+      filterObject[fnp] = parseDropShadow(value[fn]);
+    } else if (fn === 'url') {
+      filterObject[fn] = value[fn];
     // } else if ( /blur|opacity|grayscale|sepia/.test(fn) ) {
     } else {
-      filterObject[fn] = parseFloat(value[fn])
+      filterObject[fn] = parseFloat(value[fn]);
     }
-  }
+  });
 
   return filterObject;
 }
 
-function crossCheckFilter(tweenProp){
-  if ( this.valuesEnd[tweenProp] ) { 
-    for (const fn in this.valuesStart[tweenProp]){
-      if (!this.valuesEnd[tweenProp][fn]){
-        this.valuesEnd[tweenProp][fn] = this.valuesStart[tweenProp][fn]
+function crossCheckFilter(tweenProp) {
+  if (this.valuesEnd[tweenProp]) {
+    Object.keys(this.valuesStart[tweenProp]).forEach((fn) => {
+      if (!this.valuesEnd[tweenProp][fn]) {
+        this.valuesEnd[tweenProp][fn] = this.valuesStart[tweenProp][fn];
       }
-    }
+    });
   }
 }
 
@@ -104,15 +123,31 @@ const filterFunctions = {
   prepareStart: getFilter,
   prepareProperty: prepareFilter,
   onStart: onStartFilter,
-  crossCheck: crossCheckFilter
-}
+  crossCheck: crossCheckFilter,
+};
 
 // Full Component
 const filterEffects = {
   component: 'filterEffects',
   property: 'filter',
-  // subProperties: ['blur', 'brightness','contrast','dropShadow','hueRotate','grayscale','invert','opacity','saturate','sepia','url'], // opacity function interfere with opacityProperty
-  defaultValue: {opacity: 100, blur: 0, saturate: 100, grayscale: 0, brightness: 100, contrast: 100, sepia: 0, invert: 0, hueRotate:0, dropShadow: [0,0,0,{r:0,g:0,b:0}], url:''},
+  // opacity function interfere with opacityProperty
+  // subProperties: [
+  //   'blur', 'brightness','contrast','dropShadow',
+  //   'hueRotate','grayscale','invert','opacity','saturate','sepia','url'
+  // ],
+  defaultValue: {
+    opacity: 100,
+    blur: 0,
+    saturate: 100,
+    grayscale: 0,
+    brightness: 100,
+    contrast: 100,
+    sepia: 0,
+    invert: 0,
+    hueRotate: 0,
+    dropShadow: [0, 0, 0, { r: 0, g: 0, b: 0 }],
+    url: '',
+  },
   Interpolate: {
     opacity: numbers,
     blur: numbers,
@@ -123,12 +158,12 @@ const filterEffects = {
     sepia: numbers,
     invert: numbers,
     hueRotate: numbers,
-    dropShadow: {numbers,colors,dropShadow}
+    dropShadow: { numbers, colors, dropShadow },
   },
   functions: filterFunctions,
-  Util: {parseDropShadow,parseFilterString,replaceDashNamespace,trueColor}
-}
+  Util: {
+    parseDropShadow, parseFilterString, replaceDashNamespace, trueColor,
+  },
+};
 
-export default filterEffects
-
-Components.FilterEffects = filterEffects
+export default filterEffects;

src/components/filterEffectsBase.js

@@ -1,44 +1,56 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
 
-// const filterEffects = { property : 'filter', subProperties: {}, defaultValue: {}, interpolators: {} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* filterEffects = {
+  property: 'filter',
+  subProperties: {},
+  defaultValue: {},
+  interpolators: {},
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component Interpolation
-export function dropShadow(a,b,v){
-  let params = [], unit = 'px'
+export function dropShadow(a, b, v) {
+  const params = [];
+  const unit = 'px';
 
-  for (let i=0; i<3; i++){
-    params[i] = ((numbers(a[i],b[i],v) * 100 >>0) /100) + unit
+  for (let i = 0; i < 3; i += 1) {
+    params[i] = ((numbers(a[i], b[i], v) * 100 >> 0) / 100) + unit;
   }
-  return `drop-shadow(${params.concat( colors(a[3],b[3],v) ).join(' ') })`
+  return `drop-shadow(${params.concat(colors(a[3], b[3], v)).join(' ')})`;
 }
 // Component Functions
 export function onStartFilter(tweenProp) {
-  if ( this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
+  if (this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      elem.style[tweenProp] = (b.url                      ? `url(${b.url})` : '')
-                            + (a.opacity||b.opacity       ? `opacity(${((numbers(a.opacity,b.opacity,v) * 100)>>0)/100}%)` : '')
-                            + (a.blur||b.blur             ? `blur(${((numbers(a.blur,b.blur,v) * 100)>>0)/100}em)` : '')
-                            + (a.saturate||b.saturate     ? `saturate(${((numbers(a.saturate,b.saturate,v) * 100)>>0)/100}%)` : '')
-                            + (a.invert||b.invert         ? `invert(${((numbers(a.invert,b.invert,v) * 100)>>0)/100}%)` : '')
-                            + (a.grayscale||b.grayscale   ? `grayscale(${((numbers(a.grayscale,b.grayscale,v) * 100)>>0)/100}%)` : '')
-                            + (a.hueRotate||b.hueRotate   ? `hue-rotate(${((numbers(a.hueRotate,b.hueRotate,v) * 100)>>0)/100 }deg)` : '')
-                            + (a.sepia||b.sepia           ? `sepia(${((numbers(a.sepia,b.sepia,v) * 100)>>0)/100 }%)` : '')
-                            + (a.brightness||b.brightness ? `brightness(${((numbers(a.brightness,b.brightness,v) * 100)>>0)/100 }%)` : '')
-                            + (a.contrast||b.contrast     ? `contrast(${((numbers(a.contrast,b.contrast,v) * 100)>>0)/100 }%)` : '')
-                            + (a.dropShadow||b.dropShadow ? dropShadow(a.dropShadow,b.dropShadow,v) : '')
-    }
+      elem.style[tweenProp] = (b.url ? `url(${b.url})` : '')
+                            + (a.opacity || b.opacity ? `opacity(${((numbers(a.opacity, b.opacity, v) * 100) >> 0) / 100}%)` : '')
+                            + (a.blur || b.blur ? `blur(${((numbers(a.blur, b.blur, v) * 100) >> 0) / 100}em)` : '')
+                            + (a.saturate || b.saturate ? `saturate(${((numbers(a.saturate, b.saturate, v) * 100) >> 0) / 100}%)` : '')
+                            + (a.invert || b.invert ? `invert(${((numbers(a.invert, b.invert, v) * 100) >> 0) / 100}%)` : '')
+                            + (a.grayscale || b.grayscale ? `grayscale(${((numbers(a.grayscale, b.grayscale, v) * 100) >> 0) / 100}%)` : '')
+                            + (a.hueRotate || b.hueRotate ? `hue-rotate(${((numbers(a.hueRotate, b.hueRotate, v) * 100) >> 0) / 100}deg)` : '')
+                            + (a.sepia || b.sepia ? `sepia(${((numbers(a.sepia, b.sepia, v) * 100) >> 0) / 100}%)` : '')
+                            + (a.brightness || b.brightness ? `brightness(${((numbers(a.brightness, b.brightness, v) * 100) >> 0) / 100}%)` : '')
+                            + (a.contrast || b.contrast ? `contrast(${((numbers(a.contrast, b.contrast, v) * 100) >> 0) / 100}%)` : '')
+                            + (a.dropShadow || b.dropShadow ? dropShadow(a.dropShadow, b.dropShadow, v) : '');
+    };
   }
 }
 
-
 // Base Component
 const baseFilter = {
   component: 'baseFilter',
   property: 'filter',
-  // subProperties: ['blur', 'brightness','contrast','dropShadow','hueRotate','grayscale','invert','opacity','saturate','sepia','url'], // opacity function interfere with opacityProperty
-  // defaultValue: {opacity: 100, blur: 0, saturate: 100, grayscale: 0, brightness: 100, contrast: 100, sepia: 0, invert: 0, hueRotate:0, dropShadow: [0,0,0,{r:0,g:0,b:0}], url:''},
+  // opacity function interfere with opacityProperty
+  // subProperties: ['blur', 'brightness','contrast','dropShadow',
+  //  'hueRotate','grayscale','invert','opacity','saturate','sepia','url'],
+  // defaultValue: {
+  //   opacity: 100, blur: 0, saturate: 100, grayscale: 0,
+  //   brightness: 100, contrast: 100, sepia: 0, invert: 0, hueRotate:0,
+  //   dropShadow: [0,0,0,{r:0,g:0,b:0}], url:''
+  // },
   Interpolate: {
     opacity: numbers,
     blur: numbers,
@@ -49,9 +61,9 @@ const baseFilter = {
     sepia: numbers,
     invert: numbers,
     hueRotate: numbers,
-    dropShadow: {numbers,colors,dropShadow}
+    dropShadow: { numbers, colors, dropShadow },
   },
-  functions: {onStart:onStartFilter}
-}
+  functions: { onStart: onStartFilter },
+};
 
-export default baseFilter
+export default baseFilter;

src/components/htmlAttributes.js

@@ -1,71 +1,84 @@
-import defaultValues from '../objects/defaultValues.js'
-import onStart from '../objects/onStart.js'
-import Components from '../objects/components.js'
-import trueColor from '../util/trueColor.js' 
-import trueDimension from '../util/trueDimension.js' 
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js' 
-import {attributes,onStartAttr} from './htmlAttributesBase.js'
+import defaultValues from '../objects/defaultValues.js';
+import onStart from '../objects/onStart.js';
+import trueColor from '../util/trueColor.js';
+import trueDimension from '../util/trueDimension.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
+import { attributes, onStartAttr } from './htmlAttributesBase.js';
 
 // Component Name
-let ComponentName = 'htmlAttributes'
+const ComponentName = 'htmlAttributes';
 
 // Component Properties
-const svgColors = ['fill','stroke','stop-color'];
+const svgColors = ['fill', 'stroke', 'stop-color'];
 
 // Component Util
-function replaceUppercase (a) { return a.replace(/[A-Z]/g, "-$&").toLowerCase(); }
+function replaceUppercase(a) { return a.replace(/[A-Z]/g, '-$&').toLowerCase(); }
 
 // Component Functions
-export function getAttr(tweenProp,value){
-  let attrStartValues = {};
-  for (let attr in value){
-    let attribute = replaceUppercase(attr).replace(/_+[a-z]+/,''), // get the value for 'fill-opacity' not fillOpacity, also 'width' not the internal 'width_px'
-        currentValue = this.element.getAttribute(attribute);
-    attrStartValues[attribute] = svgColors.includes(attribute) ? (currentValue || 'rgba(0,0,0,0)') : (currentValue || (/opacity/i.test(attr) ? 1 : 0));
-  }
+export function getAttr(tweenProp, value) {
+  const attrStartValues = {};
+  Object.keys(value).forEach((attr) => {
+    // get the value for 'fill-opacity' not fillOpacity, also 'width' not the internal 'width_px'
+    const attribute = replaceUppercase(attr).replace(/_+[a-z]+/, '');
+    const currentValue = this.element.getAttribute(attribute);
+    attrStartValues[attribute] = svgColors.includes(attribute)
+      ? (currentValue || 'rgba(0,0,0,0)')
+      : (currentValue || (/opacity/i.test(attr) ? 1 : 0));
+  });
+
   return attrStartValues;
 }
-export function prepareAttr(tweenProp,attrObj){ // attr (string),attrObj (object)
-  let attributesObject = {};
-  for ( let p in attrObj ) {
-    let prop = replaceUppercase(p),
-        regex = /(%|[a-z]+)$/,
-        currentValue = this.element.getAttribute(prop.replace(/_+[a-z]+/,''));
-    if ( !svgColors.includes(prop)) {
-      if ( currentValue !== null && regex.test(currentValue) ) { // attributes set with unit suffixes
-        let unit = trueDimension(currentValue).u || trueDimension(attrObj[p]).u,
-            suffix = /%/.test(unit) ? '_percent' : `_${unit}`;
-        onStart[ComponentName][prop+suffix] = function(tp) { // most "unknown" attributes cannot register into onStart, so we manually add them
-          if ( this.valuesEnd[tweenProp] && this.valuesEnd[tweenProp][tp] && !(tp in attributes) ) {
-            attributes[tp] = (elem, p, a, b, v) => {
-              let _p = p.replace(suffix,'');
-              elem.setAttribute(_p, ( (numbers(a.v,b.v,v)*1000>>0)/1000) + b.u );
-            }
-          }
-        }
-        attributesObject[prop+suffix] = trueDimension(attrObj[p]);
-      } else if ( !regex.test(attrObj[p]) || currentValue === null || currentValue !== null && !regex.test(currentValue) ) {
-        onStart[ComponentName][prop] = function(tp) { // most "unknown" attributes cannot register into onStart, so we manually add them
-          if ( this.valuesEnd[tweenProp] && this.valuesEnd[tweenProp][tp] && !(tp in attributes) ) {
+
+export function prepareAttr(tweenProp, attrObj) { // attr (string),attrObj (object)
+  const attributesObject = {};
+
+  Object.keys(attrObj).forEach((p) => {
+    const prop = replaceUppercase(p);
+    const regex = /(%|[a-z]+)$/;
+    const currentValue = this.element.getAttribute(prop.replace(/_+[a-z]+/, ''));
+
+    if (!svgColors.includes(prop)) {
+      // attributes set with unit suffixes
+      if (currentValue !== null && regex.test(currentValue)) {
+        const unit = trueDimension(currentValue).u || trueDimension(attrObj[p]).u;
+        const suffix = /%/.test(unit) ? '_percent' : `_${unit}`;
+
+        // most "unknown" attributes cannot register into onStart, so we manually add them
+        onStart[ComponentName][prop + suffix] = (tp) => {
+          if (this.valuesEnd[tweenProp] && this.valuesEnd[tweenProp][tp] && !(tp in attributes)) {
             attributes[tp] = (elem, oneAttr, a, b, v) => {
-              elem.setAttribute(oneAttr, (numbers(a,b,v) * 1000 >> 0) / 1000 );
-            }
+              const _p = oneAttr.replace(suffix, '');
+              elem.setAttribute(_p, ((numbers(a.v, b.v, v) * 1000 >> 0) / 1000) + b.u);
+            };
           }
-        }
+        };
+        attributesObject[prop + suffix] = trueDimension(attrObj[p]);
+      } else if (!regex.test(attrObj[p]) || currentValue === null
+        || (currentValue !== null && !regex.test(currentValue))) {
+        // most "unknown" attributes cannot register into onStart, so we manually add them
+        onStart[ComponentName][prop] = (tp) => {
+          if (this.valuesEnd[tweenProp] && this.valuesEnd[tweenProp][tp] && !(tp in attributes)) {
+            attributes[tp] = (elem, oneAttr, a, b, v) => {
+              elem.setAttribute(oneAttr, (numbers(a, b, v) * 1000 >> 0) / 1000);
+            };
+          }
+        };
         attributesObject[prop] = parseFloat(attrObj[p]);
       }
     } else { // colors
-      onStart[ComponentName][prop] = function(tp) { // most "unknown" attributes cannot register into onStart, so we manually add them
-        if ( this.valuesEnd[tweenProp] && this.valuesEnd[tweenProp][tp] && !(tp in attributes) ) {
+      // most "unknown" attributes cannot register into onStart, so we manually add them
+      onStart[ComponentName][prop] = (tp) => {
+        if (this.valuesEnd[tweenProp] && this.valuesEnd[tweenProp][tp] && !(tp in attributes)) {
           attributes[tp] = (elem, oneAttr, a, b, v) => {
-            elem.setAttribute(oneAttr, colors(a,b,v));
-          }
+            elem.setAttribute(oneAttr, colors(a, b, v));
+          };
         }
-      }
+      };
       attributesObject[prop] = trueColor(attrObj[p]) || defaultValues.htmlAttributes[p];
     }
-  }
+  });
+
   return attributesObject;
 }
 
@@ -73,21 +86,27 @@ export function prepareAttr(tweenProp,attrObj){ // attr (string),attrObj (object
 const attrFunctions = {
   prepareStart: getAttr,
   prepareProperty: prepareAttr,
-  onStart: onStartAttr
-}
+  onStart: onStartAttr,
+};
 
 // Component Full
 const htmlAttributes = {
   component: ComponentName,
   property: 'attr',
-  subProperties: ['fill','stroke','stop-color','fill-opacity','stroke-opacity'], // the Animation class will need some values to validate this Object attribute
-  defaultValue: {fill : 'rgb(0,0,0)', stroke: 'rgb(0,0,0)', 'stop-color': 'rgb(0,0,0)', opacity: 1, 'stroke-opacity': 1,'fill-opacity': 1}, // same here
-  Interpolate: { numbers,colors },
+  // the Animation class will need some values to validate this Object attribute
+  subProperties: ['fill', 'stroke', 'stop-color', 'fill-opacity', 'stroke-opacity'],
+  defaultValue: {
+    fill: 'rgb(0,0,0)',
+    stroke: 'rgb(0,0,0)',
+    'stop-color': 'rgb(0,0,0)',
+    opacity: 1,
+    'stroke-opacity': 1,
+    'fill-opacity': 1, // same here
+  },
+  Interpolate: { numbers, colors },
   functions: attrFunctions,
   // export to global for faster execution
-  Util: { replaceUppercase, trueColor, trueDimension }
-}
+  Util: { replaceUppercase, trueColor, trueDimension },
+};
 
-export default htmlAttributes
-
-Components.HTMLAttributes = htmlAttributes
+export default htmlAttributes;

src/components/htmlAttributesBase.js

@@ -1,39 +1,47 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
 
 // Component Name
-let ComponentName = 'baseHTMLAttributes'
+const ComponentName = 'baseHTMLAttributes';
 
 // Component Special
-let attributes = {};
-export {attributes}
+const attributes = {};
+export { attributes };
 
 export const onStartAttr = {
-  attr : function(tweenProp){
+  attr(tweenProp) {
     if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
       KUTE[tweenProp] = (elem, vS, vE, v) => {
-        for ( const oneAttr in vE ){
-          KUTE.attributes[oneAttr](elem,oneAttr,vS[oneAttr],vE[oneAttr],v);
-        }
-      }
+        Object.keys(vE).forEach((oneAttr) => {
+          KUTE.attributes[oneAttr](elem, oneAttr, vS[oneAttr], vE[oneAttr], v);
+        });
+      };
     }
   },
-  attributes : function(tweenProp){
+  attributes(tweenProp) {
     if (!KUTE[tweenProp] && this.valuesEnd.attr) {
-      KUTE[tweenProp] = attributes
+      KUTE[tweenProp] = attributes;
     }
-  }
-}
+  },
+};
 
 // Component Base
 const baseAttributes = {
   component: ComponentName,
   property: 'attr',
-  // subProperties: ['fill','stroke','stop-color','fill-opacity','stroke-opacity'], // the Animation class will need some values to validate this Object attribute
-  // defaultValue: {fill : 'rgb(0,0,0)', stroke: 'rgb(0,0,0)', 'stop-color': 'rgb(0,0,0)', opacity: 1, 'stroke-opacity': 1,'fill-opacity': 1}, // same here
-  Interpolate: { numbers,colors },
-  functions: {onStart:onStartAttr}
-}
+  // the Animation class will need some values to validate this Object attribute
+  // subProperties: ['fill','stroke','stop-color','fill-opacity','stroke-opacity'],
+  // defaultValue:
+  //   fill : 'rgb(0,0,0)',
+  //   stroke: 'rgb(0,0,0)',
+  //   'stop-color': 'rgb(0,0,0)',
+  //   opacity: 1,
+  //   'stroke-opacity': 1,
+  //   'fill-opacity': 1 // same here
+  // },
+  Interpolate: { numbers, colors },
+  functions: { onStart: onStartAttr },
+};
 
-export default baseAttributes
+export default baseAttributes;

src/components/opacityProperty.js

@@ -1,34 +1,37 @@
-import getStyleForProperty from '../process/getStyleForProperty.js'
-import Components from '../objects/components.js'
-import numbers from '../interpolation/numbers.js' 
-import {onStartOpacity} from './opacityPropertyBase.js'
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import numbers from '../interpolation/numbers.js';
+import { onStartOpacity } from './opacityPropertyBase.js';
 
-// const opacityProperty = { property : 'opacity', defaultValue: 1, interpolators: {numbers} }, functions = { prepareStart, prepareProperty, onStart }
+/* opacityProperty = {
+  property: 'opacity',
+  defaultValue: 1,
+  interpolators: {numbers},
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Component Functions
-function getOpacity(tweenProp){
-  return getStyleForProperty(this.element,tweenProp)
+function getOpacity(tweenProp/* , value */) {
+  return getStyleForProperty(this.element, tweenProp);
 }
-function prepareOpacity(tweenProp,value){
-  return parseFloat(value);  // opacity always FLOAT
+
+function prepareOpacity(tweenProp, value) {
+  return parseFloat(value); // opacity always FLOAT
 }
 
 // All Component Functions
 const opacityFunctions = {
   prepareStart: getOpacity,
   prepareProperty: prepareOpacity,
-  onStart: onStartOpacity
-}
+  onStart: onStartOpacity,
+};
 
 // Full Component
 const opacityProperty = {
   component: 'opacityProperty',
   property: 'opacity',
   defaultValue: 1,
-  Interpolate: {numbers},
-  functions: opacityFunctions
-}
+  Interpolate: { numbers },
+  functions: opacityFunctions,
+};
 
-export default opacityProperty
-
-Components.OpacityProperty = opacityProperty
+export default opacityProperty;

src/components/opacityPropertyBase.js

@@ -1,14 +1,20 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
 
-// const opacityProperty = { property : 'opacity', defaultValue: 1, interpolators: {numbers} }, functions = { prepareStart, prepareProperty, onStart }
+/* opacityProperty = {
+  property: 'opacity',
+  defaultValue: 1,
+  interpolators: {numbers},
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Component Functions
-export function onStartOpacity(tweenProp){
-  if ( tweenProp in this.valuesEnd && !KUTE[tweenProp]) { // opacity could be 0
+export function onStartOpacity(tweenProp/* , value */) {
+  // opacity could be 0 sometimes, we need to check regardless
+  if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      elem.style[tweenProp] = ((numbers(a,b,v) * 1000)>>0)/1000;
-    }
+      elem.style[tweenProp] = ((numbers(a, b, v) * 1000) >> 0) / 1000;
+    };
   }
 }
 
@@ -17,8 +23,8 @@ const baseOpacity = {
   component: 'baseOpacity',
   property: 'opacity',
   // defaultValue: 1,
-  Interpolate: {numbers},
-  functions: {onStart: onStartOpacity}
-}
+  Interpolate: { numbers },
+  functions: { onStart: onStartOpacity },
+};
 
-export default baseOpacity
+export default baseOpacity;

src/components/scrollProperty.js

@@ -1,17 +1,29 @@
-import Components from '../objects/components.js'
-import numbers from '../interpolation/numbers.js' 
-import supportPassive from 'shorter-js/src/boolean/supportPassive.js'
+import supportPassive from 'shorter-js/src/boolean/supportPassive.js';
+import numbers from '../interpolation/numbers.js';
 
-
-import {scrollContainer,onStartScroll,onCompleteScroll,scrollIn,scrollOut,getScrollTargets,preventScroll,toggleScrollEvents} from './scrollPropertyBase.js'
+import {
+  scrollContainer,
+  onStartScroll,
+  onCompleteScroll,
+  scrollIn,
+  scrollOut,
+  getScrollTargets,
+  preventScroll,
+  toggleScrollEvents,
+} from './scrollPropertyBase.js';
 
 // Component Functions
-function getScroll(){
-  this.element = ('scroll' in this.valuesEnd) && (!this.element || this.element === window) ? scrollContainer : this.element;
-  return this.element === scrollContainer ? (window.pageYOffset || scrollContainer.scrollTop) : this.element.scrollTop;
+function getScroll() {
+  this.element = ('scroll' in this.valuesEnd) && (!this.element || this.element === window)
+    ? scrollContainer : this.element;
+
+  return this.element === scrollContainer
+    ? (window.pageYOffset || scrollContainer.scrollTop)
+    : this.element.scrollTop;
 }
-function prepareScroll(prop,value){
-  return parseInt(value);
+
+function prepareScroll(prop, value) {
+  return parseInt(value, 10);
 }
 
 // All Component Functions
@@ -19,20 +31,20 @@ const scrollFunctions = {
   prepareStart: getScroll,
   prepareProperty: prepareScroll,
   onStart: onStartScroll,
-  onComplete: onCompleteScroll
-}
+  onComplete: onCompleteScroll,
+};
 
 // Full Component
 const scrollProperty = {
   component: 'scrollProperty',
   property: 'scroll',
   defaultValue: 0,
-  Interpolate: {numbers},
+  Interpolate: { numbers },
   functions: scrollFunctions,
   // export stuff to global
-  Util: { preventScroll, scrollIn, scrollOut, getScrollTargets, toggleScrollEvents, supportPassive }
-}
+  Util: {
+    preventScroll, scrollIn, scrollOut, getScrollTargets, toggleScrollEvents, supportPassive,
+  },
+};
 
-export default scrollProperty
-
-Components.ScrollProperty = scrollProperty
+export default scrollProperty;

src/components/scrollPropertyBase.js

@@ -1,65 +1,68 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
-
-import supportPassive from 'shorter-js/src/boolean/supportPassive.js'
-import mouseHoverEvents from 'shorter-js/src/strings/mouseHoverEvents.js'
-import supportTouch from 'shorter-js/src/boolean/supportTouch.js'
+import supportPassive from 'shorter-js/src/boolean/supportPassive.js';
+import mouseHoverEvents from 'shorter-js/src/strings/mouseHoverEvents.js';
+import supportTouch from 'shorter-js/src/boolean/supportTouch.js';
+import numbers from '../interpolation/numbers.js';
+import KUTE from '../objects/kute.js';
 
 // Component Util
 // events preventing scroll
-const touchOrWheel = supportTouch ? 'touchstart' : 'mousewheel'
+const touchOrWheel = supportTouch ? 'touchstart' : 'mousewheel';
 
 // true scroll container
 // very important and specific to the component
-export const scrollContainer = navigator && /(EDGE|Mac)/i.test(navigator.userAgent) ? document.body : document.documentElement
+export const scrollContainer = navigator && /(EDGE|Mac)/i.test(navigator.userAgent)
+  ? document.body
+  : document.documentElement;
 
 // scroll event options
 // it's important to stop propagating when animating scroll
-const passiveHandler = supportPassive ? { passive: false } : false
+const passiveHandler = supportPassive ? { passive: false } : false;
 
 // prevent mousewheel or touch events while tweening scroll
 export function preventScroll(e) {
-  this.scrolling && e.preventDefault()
+  if (this.scrolling) e.preventDefault();
 }
-export function getScrollTargets(){
-  let el = this.element
-  return el === scrollContainer ? { el: document, st: document.body } : { el: el, st: el}
+export function getScrollTargets() {
+  const el = this.element;
+  return el === scrollContainer ? { el: document, st: document.body } : { el, st: el };
 }
-export function toggleScrollEvents(action,element){
-  element[action](  mouseHoverEvents[0], preventScroll, passiveHandler);
-  element[action](  touchOrWheel, preventScroll, passiveHandler);
+export function toggleScrollEvents(action, element) {
+  element[action](mouseHoverEvents[0], preventScroll, passiveHandler);
+  element[action](touchOrWheel, preventScroll, passiveHandler);
 }
-export function scrollIn(){
-  let targets = getScrollTargets.call(this)
+export function scrollIn() {
+  const targets = getScrollTargets.call(this);
 
-  if ( 'scroll' in this.valuesEnd && !targets.el.scrolling) {
+  if ('scroll' in this.valuesEnd && !targets.el.scrolling) {
     targets.el.scrolling = 1;
-    toggleScrollEvents('addEventListener',targets.el)
-    targets.st.style.pointerEvents = 'none'
+    toggleScrollEvents('addEventListener', targets.el);
+    targets.st.style.pointerEvents = 'none';
   }
 }
-export function scrollOut(){ //prevent scroll when tweening scroll
-  let targets = getScrollTargets.call(this)
+export function scrollOut() { // prevent scroll when tweening scroll
+  const targets = getScrollTargets.call(this);
 
-  if ( 'scroll' in this.valuesEnd && targets.el.scrolling) {
+  if ('scroll' in this.valuesEnd && targets.el.scrolling) {
     targets.el.scrolling = 0;
-    toggleScrollEvents('removeEventListener',targets.el)
-    targets.st.style.pointerEvents = ''
+    toggleScrollEvents('removeEventListener', targets.el);
+    targets.st.style.pointerEvents = '';
   }
 }
 
 // Component Functions
-export function onStartScroll(tweenProp){
-  if ( tweenProp in this.valuesEnd && !KUTE[tweenProp]) { // checking 0 will NOT add the render function
-    this.element = ('scroll' in this.valuesEnd) && (!this.element || this.element === window) ? scrollContainer : this.element;
+export function onStartScroll(tweenProp) {
+  // checking 0 will NOT add the render function
+  if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
+    this.element = ('scroll' in this.valuesEnd) && (!this.element || this.element === window)
+      ? scrollContainer : this.element;
     scrollIn.call(this);
     KUTE[tweenProp] = (elem, a, b, v) => {
-      elem.scrollTop = (numbers(a,b,v))>>0;
+      elem.scrollTop = (numbers(a, b, v)) >> 0;
     };
   }
 }
-export function onCompleteScroll(tweenProp){
-  scrollOut.call(this)
+export function onCompleteScroll(/* tweenProp */) {
+  scrollOut.call(this);
 }
 
 // Base Component
@@ -67,13 +70,15 @@ const baseScroll = {
   component: 'baseScroll',
   property: 'scroll',
   // defaultValue: 0,
-  Interpolate: {numbers},
+  Interpolate: { numbers },
   functions: {
     onStart: onStartScroll,
-    onComplete: onCompleteScroll
+    onComplete: onCompleteScroll,
   },
   // unfortunatelly scroll needs all them no matter the packaging
-  Util: { preventScroll, scrollIn, scrollOut, getScrollTargets, supportPassive }
-}
+  Util: {
+    preventScroll, scrollIn, scrollOut, getScrollTargets, supportPassive,
+  },
+};
 
-export default baseScroll
+export default baseScroll;

src/components/shadowProperties.js

@@ -1,13 +1,12 @@
-import defaultValues from '../objects/defaultValues.js' 
-import Components from '../objects/components.js' 
-import getStyleForProperty from '../process/getStyleForProperty.js' 
-import trueColor from '../util/trueColor.js' 
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js' 
-import {onStartShadow} from './shadowPropertiesBase.js'
+import defaultValues from '../objects/defaultValues.js';
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import trueColor from '../util/trueColor.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
+import { onStartShadow } from './shadowPropertiesBase.js';
 
 // Component Properties
-const shadowProps = ['boxShadow','textShadow']
+const shadowProps = ['boxShadow', 'textShadow'];
 
 // Component Util
 
@@ -15,79 +14,97 @@ const shadowProps = ['boxShadow','textShadow']
 // text-shadow: none | offset-x offset-y blur-radius color |initial|inherit
 // utility function to process values accordingly
 // numbers must be floats and color must be rgb object
-function processShadowArray (shadow,tweenProp){
-  let newShadow, i;
+function processShadowArray(shadow, tweenProp) {
+  let newShadow;
 
-  if (shadow.length === 3) { // [h-shadow, v-shadow, color]
+  // [h-shadow, v-shadow, color]
+  if (shadow.length === 3) {
     newShadow = [shadow[0], shadow[1], 0, 0, shadow[2], 'none'];
-  } else if (shadow.length === 4) { // [h-shadow, v-shadow, color, inset] | [h-shadow, v-shadow, blur, color]
-    newShadow = /inset|none/.test(shadow[3]) ? [shadow[0], shadow[1], 0, 0, shadow[2], shadow[3]] : [shadow[0], shadow[1], shadow[2], 0, shadow[3], 'none'];
-  } else if (shadow.length === 5) { // [h-shadow, v-shadow, blur, color, inset] | [h-shadow, v-shadow, blur, spread, color]
-    newShadow = /inset|none/.test(shadow[4]) ? [shadow[0], shadow[1], shadow[2], 0, shadow[3], shadow[4]] : [shadow[0], shadow[1], shadow[2], shadow[3], shadow[4], 'none'];           
-  } else if (shadow.length === 6) { // ideal [h-shadow, v-shadow, blur, spread, color, inset]
+  // [h-shadow, v-shadow, color, inset] | [h-shadow, v-shadow, blur, color]
+  } else if (shadow.length === 4) {
+    newShadow = /inset|none/.test(shadow[3])
+      ? [shadow[0], shadow[1], 0, 0, shadow[2], shadow[3]]
+      : [shadow[0], shadow[1], shadow[2], 0, shadow[3], 'none'];
+  // [h-shadow, v-shadow, blur, color, inset] | [h-shadow, v-shadow, blur, spread, color]
+  } else if (shadow.length === 5) {
+    newShadow = /inset|none/.test(shadow[4])
+      ? [shadow[0], shadow[1], shadow[2], 0, shadow[3], shadow[4]]
+      : [shadow[0], shadow[1], shadow[2], shadow[3], shadow[4], 'none'];
+  // ideal [h-shadow, v-shadow, blur, spread, color, inset]
+  } else if (shadow.length === 6) {
     newShadow = shadow;
   }
 
   // make sure the values are ready to tween
-  for (i=0;i<4;i++){
+  for (let i = 0; i < 4; i += 1) {
     newShadow[i] = parseFloat(newShadow[i]);
   }
+
   // also the color must be a rgb object
   newShadow[4] = trueColor(newShadow[4]);
 
-  // return tweenProp === 'boxShadow' ? newShadow : [newShadow[0],newShadow[1],newShadow[2],newShadow[4]];
-  newShadow = tweenProp === 'boxShadow' ? newShadow : newShadow.filter((x,i)=>[0,1,2,4].indexOf(i)>-1);
+  newShadow = tweenProp === 'boxShadow'
+    ? newShadow
+    : newShadow.filter((x, i) => [0, 1, 2, 4].includes(i));
+
   return newShadow;
 }
 
 // Component Functions
-export function getShadow(tweenProp,value){
-  let cssShadow = getStyleForProperty(this.element,tweenProp);
-  return /^none$|^initial$|^inherit$|^inset$/.test(cssShadow) ? defaultValues[tweenProp] : cssShadow; // '0px 0px 0px 0px rgb(0,0,0)'
+export function getShadow(tweenProp/* , value */) {
+  const cssShadow = getStyleForProperty(this.element, tweenProp);
+  // '0px 0px 0px 0px rgb(0,0,0)'
+  return /^none$|^initial$|^inherit$|^inset$/.test(cssShadow)
+    ? defaultValues[tweenProp]
+    : cssShadow;
 }
-export function prepareShadow(tweenProp,value) {
+
+export function prepareShadow(tweenProp, propValue) {
   // [horizontal, vertical, blur, spread, color: {r:0,g:0,b:0}, inset]
   // parseProperty for boxShadow, builds basic structure with ready to tween values
-  if (typeof value === 'string'){
-    let currentColor, inset = 'none';
+  let value = propValue;
+  if (typeof value === 'string') {
+    let inset = 'none';
     // a full RegEx for color strings
-    const colRegEx = /(\s?(?:#(?:[\da-f]{3}){1,2}|rgba?\(\d{1,3},\s*\d{1,3},\s*\d{1,3}\))\s?)/gi 
+    const colRegEx = /(\s?(?:#(?:[\da-f]{3}){1,2}|rgba?\(\d{1,3},\s*\d{1,3},\s*\d{1,3}\))\s?)/gi;
+    const currentColor = value.match(colRegEx);
 
     // make sure to always have the inset last if possible
     inset = /inset/.test(value) ? 'inset' : inset;
-    value = /inset/.test(value) ? value.replace(/(\s+inset|inset+\s)/g,'') : value;
+    value = /inset/.test(value) ? value.replace(/(\s+inset|inset+\s)/g, '') : value;
 
     // also getComputedStyle often returns color first "rgb(0, 0, 0) 15px 15px 6px 0px inset"
-    currentColor = value.match(colRegEx); 
-    value = value.replace(currentColor[0],'').split(' ').concat([currentColor[0].replace(/\s/g,'')],[inset]);
+    value = value.replace(currentColor[0], '').split(' ').concat([currentColor[0].replace(/\s/g, '')], [inset]);
 
-    value = processShadowArray(value,tweenProp);
-  } else if (value instanceof Array){
-    value = processShadowArray(value,tweenProp);
+    value = processShadowArray(value, tweenProp);
+  } else if (value instanceof Array) {
+    value = processShadowArray(value, tweenProp);
   }
+
   return value;
 }
 
-const shadowPropOnStart = {}
-shadowProps.map(x=>shadowPropOnStart[x]=onStartShadow)
+const shadowPropOnStart = {};
+shadowProps.forEach((x) => { shadowPropOnStart[x] = onStartShadow; });
 
 // All Component Functions
 const shadowFunctions = {
   prepareStart: getShadow,
   prepareProperty: prepareShadow,
-  onStart: shadowPropOnStart
-}
+  onStart: shadowPropOnStart,
+};
 
 // Component Full
 const shadowProperties = {
   component: 'shadowProperties',
   properties: shadowProps,
-  defaultValues: {boxShadow :'0px 0px 0px 0px rgb(0,0,0)', textShadow: '0px 0px 0px rgb(0,0,0)'},
-  Interpolate: {numbers,colors},
+  defaultValues: {
+    boxShadow: '0px 0px 0px 0px rgb(0,0,0)',
+    textShadow: '0px 0px 0px rgb(0,0,0)',
+  },
+  Interpolate: { numbers, colors },
   functions: shadowFunctions,
-  Util: { processShadowArray, trueColor }
-}
+  Util: { processShadowArray, trueColor },
+};
 
-export default shadowProperties
-
-Components.ShadowProperties = shadowProperties
+export default shadowProperties;

src/components/shadowPropertiesBase.js

@@ -1,38 +1,45 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
-import colors from '../interpolation/colors.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
+import colors from '../interpolation/colors.js';
 
 // Component Properties
-const shadowProps = ['boxShadow','textShadow']
+const shadowProps = ['boxShadow', 'textShadow'];
 
 // Component Functions
 export function onStartShadow(tweenProp) {
-  if ( this.valuesEnd[tweenProp] && !KUTE[tweenProp]) { 
+  if (this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
       // let's start with the numbers | set unit | also determine inset
-      let params = [], unit = 'px', sl = tweenProp === 'textShadow' ? 3 : 4,
-          colA = sl === 3 ? a[3] : a[4], colB = sl === 3 ? b[3] : b[4],
-          inset = a[5] && a[5] !== 'none' || b[5] && b[5] !== 'none' ? ' inset' : false; 
+      const params = [];
+      const unit = 'px';
+      const sl = tweenProp === 'textShadow' ? 3 : 4;
+      const colA = sl === 3 ? a[3] : a[4];
+      const colB = sl === 3 ? b[3] : b[4];
+      const inset = (a[5] && a[5] !== 'none') || (b[5] && b[5] !== 'none') ? ' inset' : false;
 
-      for (let i=0; i<sl; i++){
-        params.push( ((numbers( a[i], b[i], v ) * 1000 >> 0) / 1000) + unit );
+      for (let i = 0; i < sl; i += 1) {
+        params.push(((numbers(a[i], b[i], v) * 1000 >> 0) / 1000) + unit);
       }
       // the final piece of the puzzle, the DOM update
-      elem.style[tweenProp] = inset ? colors(colA,colB,v) + params.join(' ') + inset 
-                                    : colors(colA,colB,v) + params.join(' ');
-    }
+      elem.style[tweenProp] = inset
+        ? colors(colA, colB, v) + params.join(' ') + inset
+        : colors(colA, colB, v) + params.join(' ');
+    };
   }
 }
-const shadowPropOnStart = {}
-shadowProps.map(x=>shadowPropOnStart[x]=onStartShadow)
+const shadowPropOnStart = {};
+shadowProps.forEach((x) => { shadowPropOnStart[x] = onStartShadow; });
 
 // Component Base
 const baseShadow = {
   component: 'baseShadow',
   // properties: shadowProps,
-  // defaultValues: {boxShadow :'0px 0px 0px 0px rgb(0,0,0)', textShadow: '0px 0px 0px 0px rgb(0,0,0)'},
-  Interpolate: {numbers,colors},
-  functions: {onStart: shadowPropOnStart}
-}
+  // defaultValues: {
+  //   boxShadow :'0px 0px 0px 0px rgb(0,0,0)',
+  //   textShadow: '0px 0px 0px 0px rgb(0,0,0)'
+  // },
+  Interpolate: { numbers, colors },
+  functions: { onStart: shadowPropOnStart },
+};
 
-export default baseShadow
+export default baseShadow;

src/components/svgCubicMorph.js

@@ -1,131 +1,156 @@
-import Components from '../objects/components.js'
-import selector from '../util/selector.js'
-import numbers from '../interpolation/numbers.js' 
+import parsePathString from 'svg-path-commander/src/process/parsePathString.js';
+import pathToAbsolute from 'svg-path-commander/src/convert/pathToAbsolute.js';
+import pathToCurve from 'svg-path-commander/src/convert/pathToCurve.js';
+import pathToString from 'svg-path-commander/src/convert/pathToString.js';
+import reverseCurve from 'svg-path-commander/src/process/reverseCurve.js';
+import getDrawDirection from 'svg-path-commander/src/util/getDrawDirection.js';
+import clonePath from 'svg-path-commander/src/process/clonePath.js';
+import splitCubic from 'svg-path-commander/src/process/splitCubic.js';
+import splitPath from 'svg-path-commander/src/process/splitPath.js';
+import getSegCubicLength from 'svg-path-commander/src/util/getSegCubicLength.js';
+import distanceSquareRoot from 'svg-path-commander/src/math/distanceSquareRoot.js';
+import { onStartCubicMorph } from './svgCubicMorphBase.js';
+import numbers from '../interpolation/numbers.js';
+import selector from '../util/selector.js';
 
-import {onStartCubicMorph} from './svgCubicMorphBase.js'
-
-import parsePathString from 'svg-path-commander/src/process/parsePathString.js'
-import pathToAbsolute from 'svg-path-commander/src/convert/pathToAbsolute.js'
-import pathToCurve from 'svg-path-commander/src/convert/pathToCurve.js'
-import pathToString from 'svg-path-commander/src/convert/pathToString.js'
-import reverseCurve from 'svg-path-commander/src/process/reverseCurve.js'
-import getDrawDirection from 'svg-path-commander/src/util/getDrawDirection.js'
-import clonePath from 'svg-path-commander/src/process/clonePath.js'
-import splitCubic from 'svg-path-commander/src/process/splitCubic.js'
-import splitPath from 'svg-path-commander/src/process/splitPath.js'
-import getSegCubicLength from 'svg-path-commander/src/util/getSegCubicLength.js'
-import distanceSquareRoot from 'svg-path-commander/src/math/distanceSquareRoot.js'
-
-
-// const SVGMorph = { property : 'path', defaultValue: [], interpolators: {numbers} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* SVGMorph = {
+  property: 'path',
+  defaultValue: [],
+  interpolators: {numbers},
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component Util
-function getCurveArray(pathString){
-  return pathToCurve(splitPath(pathToString(pathToAbsolute(pathString)))[0]).map((segment,i,pathArray)=>{
-    let segmentData = i && pathArray[i-1].slice(-2).concat(segment.slice(1)),
-        curveLength = i ? getSegCubicLength.apply(0, segmentData ) : 0,
-        subsegs = i ? (curveLength ? splitCubic( segmentData ) : [segment,segment]) : [segment]; // must be [segment,segment] 
-    return { 
-      s: segment, 
-      ss: subsegs,
-      l: curveLength
-    }
-  })
+function getCurveArray(pathString) {
+  return pathToCurve(splitPath(pathToString(pathToAbsolute(pathString)))[0])
+    .map((segment, i, pathArray) => {
+      const segmentData = i && pathArray[i - 1].slice(-2).concat(segment.slice(1));
+      const curveLength = i ? getSegCubicLength.apply(0, segmentData) : 0;
+
+      let subsegs;
+      if (i) {
+        // must be [segment,segment]
+        subsegs = curveLength ? splitCubic(segmentData) : [segment, segment];
+      } else {
+        subsegs = [segment];
+      }
+
+      return {
+        s: segment,
+        ss: subsegs,
+        l: curveLength,
+      };
+    });
 }
 
-function equalizeSegments(path1,path2,TL){
-  let c1 = getCurveArray(path1),
-      c2 = getCurveArray(path2), 
-      L1 = c1.length,
-      L2 = c2.length,
-      l1 = c1.filter(x=>x.l).length,
-      l2 = c2.filter(x=>x.l).length,
-      m1 = c1.filter(x=>x.l).reduce((a,{l})=>a+l,0) / l1 || 0,
-      m2 = c2.filter(x=>x.l).reduce((a,{l})=>a+l,0) / l2 || 0,
-      tl = TL || Math.max(L1,L2),
-      mm = [m1,m2],
-      dif = [tl-L1,tl-L2],
-      canSplit = 0,
-      result = [c1,c2].map((x,i) => x.l === tl ? x.map(y=>y.s)
-             : x.map((y,j) => {
-                canSplit = j && dif[i] && y.l >= mm[i]
-                dif[i] -= canSplit ? 1 : 0
-                return canSplit ? y.ss : [y.s]
-              }).flat())
+function equalizeSegments(path1, path2, TL) {
+  const c1 = getCurveArray(path1);
+  const c2 = getCurveArray(path2);
+  const L1 = c1.length;
+  const L2 = c2.length;
+  const l1 = c1.filter((x) => x.l).length;
+  const l2 = c2.filter((x) => x.l).length;
+  const m1 = c1.filter((x) => x.l).reduce((a, { l }) => a + l, 0) / l1 || 0;
+  const m2 = c2.filter((x) => x.l).reduce((a, { l }) => a + l, 0) / l2 || 0;
+  const tl = TL || Math.max(L1, L2);
+  const mm = [m1, m2];
+  const dif = [tl - L1, tl - L2];
+  let canSplit = 0;
+  const result = [c1, c2]
+    .map((x, i) => (x.l === tl
+      ? x.map((y) => y.s)
+      : x.map((y, j) => {
+        canSplit = j && dif[i] && y.l >= mm[i];
+        dif[i] -= canSplit ? 1 : 0;
+        return canSplit ? y.ss : [y.s];
+      }).flat()));
 
-  return result[0].length === result[1].length ? result : equalizeSegments(result[0],result[1],tl)
+  return result[0].length === result[1].length
+    ? result
+    : equalizeSegments(result[0], result[1], tl);
 }
 
 function getRotations(a) {
-  let segCount = a.length, pointCount = segCount - 1
+  const segCount = a.length;
+  const pointCount = segCount - 1;
 
-  return a.map((f,idx) => {
-    return a.map((p,i)=>{
-      let oldSegIdx = idx + i, seg;
-      if (i===0 || a[oldSegIdx] && a[oldSegIdx][0] === 'M') {
-        seg = a[oldSegIdx]
-        return ['M'].concat(seg.slice(-2))
-      } else {
-        if (oldSegIdx >= segCount) oldSegIdx -= pointCount;
-        return a[oldSegIdx]
-      }
-    })
-  })
+  return a.map((f, idx) => a.map((p, i) => {
+    let oldSegIdx = idx + i;
+    let seg;
+
+    if (i === 0 || (a[oldSegIdx] && a[oldSegIdx][0] === 'M')) {
+      seg = a[oldSegIdx];
+      return ['M'].concat(seg.slice(-2));
+    }
+    if (oldSegIdx >= segCount) oldSegIdx -= pointCount;
+    return a[oldSegIdx];
+  }));
 }
 
-function getRotatedCurve(a,b) {
-  let segCount = a.length - 1,
-      lineLengths = [],
-      computedIndex = 0,
-      sumLensSqrd = 0,
-      rotations = getRotations(a);
+function getRotatedCurve(a, b) {
+  const segCount = a.length - 1;
+  const lineLengths = [];
+  let computedIndex = 0;
+  let sumLensSqrd = 0;
+  const rotations = getRotations(a);
 
-  rotations.map((r,i)=>{
-    a.slice(1).map((s,j) => {
-      sumLensSqrd += distanceSquareRoot(a[(i+j) % segCount].slice(-2),b[j % segCount].slice(-2))
-    })
-    lineLengths[i] = sumLensSqrd
-    sumLensSqrd = 0
-  })
+  rotations.forEach((r, i) => {
+    a.slice(1).forEach((s, j) => {
+      sumLensSqrd += distanceSquareRoot(a[(i + j) % segCount].slice(-2), b[j % segCount].slice(-2));
+    });
+    lineLengths[i] = sumLensSqrd;
+    sumLensSqrd = 0;
+  });
 
-  computedIndex = lineLengths.indexOf(Math.min.apply(null,lineLengths))
+  computedIndex = lineLengths.indexOf(Math.min.apply(null, lineLengths));
 
-  return rotations[computedIndex]
+  return rotations[computedIndex];
 }
 
 // Component Functions
-function getCubicMorph(tweenProp){
+function getCubicMorph(/* tweenProp, value */) {
   return this.element.getAttribute('d');
 }
-function prepareCubicMorph(tweenProp,value){
+function prepareCubicMorph(tweenProp, value) {
   // get path d attribute or create a path from string value
-  let pathObject = {}, 
-      el = value instanceof SVGElement ? value : /^\.|^\#/.test(value) ? selector(value) : null,
-      pathReg = new RegExp('\\n','ig'); // remove newlines, they break some JSON strings
+  const pathObject = {};
+  // remove newlines, they break some JSON strings
+  const pathReg = new RegExp('\\n', 'ig');
+
+  let el = null;
+  if (value instanceof SVGElement) {
+    el = value;
+  } else if (/^\.|^#/.test(value)) {
+    el = selector(value);
+  }
 
   // make sure to return pre-processed values
-  if ( typeof(value) === 'object' && value.curve ) {
+  if (typeof (value) === 'object' && value.curve) {
     return value;
-  } else if ( el && /path|glyph/.test(el.tagName) ) {
-    pathObject.original = el.getAttribute('d').replace(pathReg,'');
-  } else if (!el && typeof(value) === 'string') { // maybe it's a string path already
-    pathObject.original = value.replace(pathReg,'');
+  } if (el && /path|glyph/.test(el.tagName)) {
+    pathObject.original = el.getAttribute('d').replace(pathReg, '');
+  // maybe it's a string path already
+  } else if (!el && typeof (value) === 'string') {
+    pathObject.original = value.replace(pathReg, '');
   }
   return pathObject;
 }
-function crossCheckCubicMorph(tweenProp){
+function crossCheckCubicMorph(tweenProp) {
   if (this.valuesEnd[tweenProp]) {
-    let pathCurve1 = this.valuesStart[tweenProp].curve,
-        pathCurve2 = this.valuesEnd[tweenProp].curve
+    const pathCurve1 = this.valuesStart[tweenProp].curve;
+    const pathCurve2 = this.valuesEnd[tweenProp].curve;
 
-    if ( !pathCurve1 || !pathCurve2 || ( pathCurve1 && pathCurve2 && pathCurve1[0][0] === 'M' && pathCurve1.length !== pathCurve2.length) ) {
-      let path1 = this.valuesStart[tweenProp].original,
-          path2 = this.valuesEnd[tweenProp].original,
-          curves = equalizeSegments(path1,path2),
-          curve0 = getDrawDirection(curves[0]) !== getDrawDirection(curves[1]) ? reverseCurve(curves[0]) : clonePath(curves[0])
+    if (!pathCurve1 || !pathCurve2
+      || (pathCurve1 && pathCurve2 && pathCurve1[0][0] === 'M' && pathCurve1.length !== pathCurve2.length)) {
+      const path1 = this.valuesStart[tweenProp].original;
+      const path2 = this.valuesEnd[tweenProp].original;
+      const curves = equalizeSegments(path1, path2);
+      const curve0 = getDrawDirection(curves[0]) !== getDrawDirection(curves[1])
+        ? reverseCurve(curves[0])
+        : clonePath(curves[0]);
 
       this.valuesStart[tweenProp].curve = curve0;
-      this.valuesEnd[tweenProp].curve = getRotatedCurve(curves[1],curve0)
+      this.valuesEnd[tweenProp].curve = getRotatedCurve(curves[1], curve0);
     }
   }
 }
@@ -135,25 +160,31 @@ const svgCubicMorphFunctions = {
   prepareStart: getCubicMorph,
   prepareProperty: prepareCubicMorph,
   onStart: onStartCubicMorph,
-  crossCheck: crossCheckCubicMorph
-}
+  crossCheck: crossCheckCubicMorph,
+};
 
 // Component Full
 const svgCubicMorph = {
   component: 'svgCubicMorph',
   property: 'path',
   defaultValue: [],
-  Interpolate: {numbers,pathToString},
+  Interpolate: { numbers, pathToString },
   functions: svgCubicMorphFunctions,
   // export utils to global for faster execution
   Util: {
-    pathToCurve, pathToAbsolute, pathToString, parsePathString,
-    getRotatedCurve, getRotations, equalizeSegments,
-    reverseCurve, clonePath, getDrawDirection,
-    splitCubic, getCurveArray
-  }
-}
+    pathToCurve,
+    pathToAbsolute,
+    pathToString,
+    parsePathString,
+    getRotatedCurve,
+    getRotations,
+    equalizeSegments,
+    reverseCurve,
+    clonePath,
+    getDrawDirection,
+    splitCubic,
+    getCurveArray,
+  },
+};
 
-export default svgCubicMorph
-
-Components.SVGCubicMorph = svgCubicMorph
+export default svgCubicMorph;

src/components/svgCubicMorphBase.js

@@ -1,23 +1,29 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js'
+import pathToString from 'svg-path-commander/src/convert/pathToString.js';
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
 
-import pathToString from 'svg-path-commander/src/convert/pathToString.js'
-
-// const SVGMorph = { property : 'path', defaultValue: [], interpolators: {numbers} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* SVGMorph = {
+  property: 'path',
+  defaultValue: [],
+  interpolators: {numbers} },
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component Functions
-export function onStartCubicMorph(tweenProp){
+export function onStartCubicMorph(tweenProp) {
   if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
-    KUTE[tweenProp] = function(elem,a,b,v){
-      let curve = [], path1 = a.curve, path2 = b.curve;
-      for(let i=0, l=path2.length; i<l; i++) { // each path command
+    KUTE[tweenProp] = function updateMorph(elem, a, b, v) {
+      const curve = [];
+      const path1 = a.curve;
+      const path2 = b.curve;
+      for (let i = 0, l = path2.length; i < l; i += 1) { // each path command
         curve.push([path1[i][0]]);
-        for(var j=1,l2=path1[i].length;j<l2;j++) { // each command coordinate
-          curve[i].push( (numbers(path1[i][j], path2[i][j], v) * 1000 >>0)/1000 );
+        for (let j = 1, l2 = path1[i].length; j < l2; j += 1) { // each command coordinate
+          curve[i].push((numbers(path1[i][j], path2[i][j], v) * 1000 >> 0) / 1000);
         }
       }
-      elem.setAttribute("d", v === 1 ? b.original : pathToString(curve) )
-    }
+      elem.setAttribute('d', v === 1 ? b.original : pathToString(curve));
+    };
   }
 }
 
@@ -26,8 +32,8 @@ const baseSvgCubicMorph = {
   component: 'baseSVGCubicMorph',
   property: 'path',
   // defaultValue: [],
-  Interpolate: {numbers,pathToString},
-  functions: {onStart:onStartCubicMorph}
-}
+  Interpolate: { numbers, pathToString },
+  functions: { onStart: onStartCubicMorph },
+};
 
-export default baseSvgCubicMorph
+export default baseSvgCubicMorph;

src/components/svgDraw.js

@@ -1,130 +1,151 @@
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js'
-import numbers from '../interpolation/numbers.js' 
-import {onStartDraw} from './svgDrawBase.js'
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import numbers from '../interpolation/numbers.js';
+import { onStartDraw } from './svgDrawBase.js';
 
-// const svgDraw = { property : 'draw', defaultValue, Interpolate: {numbers} }, functions = { prepareStart, prepareProperty, onStart }
+/* svgDraw = {
+  property: 'draw',
+  defaultValue,
+  Interpolate: {numbers} },
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Component Util
-function percent (v,l) {
-  return parseFloat(v) / 100 * l
+function percent(v, l) {
+  return (parseFloat(v) / 100) * l;
 }
 
 // http://stackoverflow.com/a/30376660
-function getRectLength(el) { // returns the length of a Rect
-  let w = el.getAttribute('width'),
-      h = el.getAttribute('height');
-  return (w*2)+(h*2);
+// returns the length of a Rect
+function getRectLength(el) {
+  const w = el.getAttribute('width');
+  const h = el.getAttribute('height');
+  return (w * 2) + (h * 2);
 }
 
+// getPolygonLength / getPolylineLength
+// returns the length of the Polygon / Polyline
 function getPolyLength(el) {
-  // getPolygonLength / getPolylineLength - return the length of the Polygon / Polyline
   const points = el.getAttribute('points').split(' ');
 
   let len = 0;
   if (points.length > 1) {
-    const coord = p => {
+    const coord = (p) => {
       const c = p.split(',');
-      if (c.length != 2) { return; } // return undefined
-      if (isNaN(c[0]) || isNaN(c[1])) { return; }
+      if (c.length !== 2) { return 0; } // return undefined
+      if (Number.isNaN(c[0] * 1) || Number.isNaN(c[1] * 1)) { return 0; }
       return [parseFloat(c[0]), parseFloat(c[1])];
     };
 
     const dist = (c1, c2) => {
-      if (c1 != undefined && c2 != undefined) {
+      if (c1 !== undefined && c2 !== undefined) {
         return Math.sqrt((c2[0] - c1[0]) ** 2 + (c2[1] - c1[1]) ** 2);
       }
       return 0;
     };
 
     if (points.length > 2) {
-      for (let i=0; i<points.length-1; i++) {
-        len += dist(coord(points[i]), coord(points[i+1]));
+      for (let i = 0; i < points.length - 1; i += 1) {
+        len += dist(coord(points[i]), coord(points[i + 1]));
       }
     }
-    len += el.tagName === 'polygon' ? dist(coord(points[0]), coord(points[points.length - 1])) : 0;
+    len += el.tagName === 'polygon'
+      ? dist(coord(points[0]), coord(points[points.length - 1])) : 0;
   }
   return len;
 }
 
-function getLineLength(el) { // return the length of the line
+// return the length of the line
+function getLineLength(el) {
   const x1 = el.getAttribute('x1');
   const x2 = el.getAttribute('x2');
   const y1 = el.getAttribute('y1');
   const y2 = el.getAttribute('y2');
-  return Math.sqrt((x2 - x1) ** 2+(y2 - y1) ** 2);
+  return Math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2);
 }
 
-function getCircleLength(el) { // return the length of the circle
+// return the length of the circle
+function getCircleLength(el) {
   const r = el.getAttribute('r');
   return 2 * Math.PI * r;
 }
 
-function getEllipseLength(el) { // returns the length of an ellipse
-  const rx = el.getAttribute('rx'), ry = el.getAttribute('ry'), len = 2*rx, wid = 2*ry;
-  return ((Math.sqrt(.5 * ((len * len) + (wid * wid)))) * (Math.PI * 2)) / 2;
+// returns the length of an ellipse
+function getEllipseLength(el) {
+  const rx = el.getAttribute('rx');
+  const ry = el.getAttribute('ry');
+  const len = 2 * rx;
+  const wid = 2 * ry;
+  return ((Math.sqrt(0.5 * ((len * len) + (wid * wid)))) * (Math.PI * 2)) / 2;
 }
 
-function getTotalLength(el) { // returns the result of any of the below functions
-  if ('rect'===el.tagName) {
+// returns the result of any of the below functions
+function getTotalLength(el) {
+  if (el.tagName === 'rect') {
     return getRectLength(el);
-  } else if ('circle'===el.tagName) {
+  } if (el.tagName === 'circle') {
     return getCircleLength(el);
-  } else if ('ellipse'===el.tagName) {
+  } if (el.tagName === 'ellipse') {
     return getEllipseLength(el);
-  } else if (['polygon','polyline'].indexOf(el.tagName)>-1) {
+  } if (['polygon', 'polyline'].includes(el.tagName)) {
     return getPolyLength(el);
-  } else if ('line'===el.tagName) {
+  } if (el.tagName === 'line') {
     return getLineLength(el);
   }
+  // ESLint
+  return 0;
 }
 
-function getDraw(e,v) {
-  let length = /path|glyph/.test(e.tagName) ? e.getTotalLength() : getTotalLength(e),
-      start, end, d, o;
+function getDraw(element, value) {
+  const length = /path|glyph/.test(element.tagName)
+    ? element.getTotalLength()
+    : getTotalLength(element);
+  let start;
+  let end;
+  let dasharray;
+  let offset;
 
-  if ( v instanceof Object ) {
-    return v;
-  } else if (typeof v === 'string') {
-    v = v.split(/\,|\s/);
-    start = /%/.test(v[0]) ? percent(v[0].trim(),length) : parseFloat(v[0]);
-    end = /%/.test(v[1]) ? percent(v[1].trim(),length) : parseFloat(v[1]);
-  } else if (typeof v === 'undefined') {
-    o = parseFloat(getStyleForProperty(e,'stroke-dashoffset'));
-    d = getStyleForProperty(e,'stroke-dasharray').split(/\,/);
+  if (value instanceof Object) {
+    return value;
+  } if (typeof value === 'string') {
+    const v = value.split(/,|\s/);
+    start = /%/.test(v[0]) ? percent(v[0].trim(), length) : parseFloat(v[0]);
+    end = /%/.test(v[1]) ? percent(v[1].trim(), length) : parseFloat(v[1]);
+  } else if (typeof value === 'undefined') {
+    offset = parseFloat(getStyleForProperty(element, 'stroke-dashoffset'));
+    dasharray = getStyleForProperty(element, 'stroke-dasharray').split(',');
 
-    start = 0-o;
-    end = parseFloat(d[0]) + start || length;
+    start = 0 - offset;
+    end = parseFloat(dasharray[0]) + start || length;
   }
   return { s: start, e: end, l: length };
 }
 
 function resetDraw(elem) {
-  elem.style.strokeDashoffset = ``;
-  elem.style.strokeDasharray = ``;
+  elem.style.strokeDashoffset = '';
+  elem.style.strokeDasharray = '';
 }
 
 // Component Functions
-function getDrawValue(){
+function getDrawValue(/* prop, value */) {
   return getDraw(this.element);
 }
-function prepareDraw(a,o){
-  return getDraw(this.element,o);
+function prepareDraw(a, o) {
+  return getDraw(this.element, o);
 }
 
 // All Component Functions
 const svgDrawFunctions = {
   prepareStart: getDrawValue,
   prepareProperty: prepareDraw,
-  onStart: onStartDraw
-}
+  onStart: onStartDraw,
+};
 
 // Component Full
 const svgDraw = {
   component: 'svgDraw',
   property: 'draw',
   defaultValue: '0% 0%',
-  Interpolate: {numbers},
+  Interpolate: { numbers },
   functions: svgDrawFunctions,
   // Export to global for faster execution
   Util: {
@@ -136,10 +157,8 @@ const svgDraw = {
     getTotalLength,
     resetDraw,
     getDraw,
-    percent
-  }
-}
+    percent,
+  },
+};
 
-export default svgDraw
-
-Components.SVGDraw = svgDraw
+export default svgDraw;

src/components/svgDrawBase.js

@@ -1,21 +1,26 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
 
-// const svgDraw = { property : 'draw', defaultValue, Interpolate: {numbers} }, functions = { prepareStart, prepareProperty, onStart }
+/* svgDraw = {
+  property: 'draw',
+  defaultValue,
+  Interpolate: {numbers} },
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Component Functions
-export function onStartDraw(tweenProp){
-  if ( tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
-    KUTE[tweenProp] = (elem,a,b,v) => {
-      let pathLength = (a.l*100>>0)/100,
-        start = (numbers(a.s,b.s,v)*100>>0)/100,
-        end = (numbers(a.e,b.e,v)*100>>0)/100,
-        offset = 0 - start,
-        dashOne = end+offset;
+export function onStartDraw(tweenProp) {
+  if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) {
+    KUTE[tweenProp] = (elem, a, b, v) => {
+      const pathLength = (a.l * 100 >> 0) / 100;
+      const start = (numbers(a.s, b.s, v) * 100 >> 0) / 100;
+      const end = (numbers(a.e, b.e, v) * 100 >> 0) / 100;
+      const offset = 0 - start;
+      const dashOne = end + offset;
 
       elem.style.strokeDashoffset = `${offset}px`;
-      elem.style.strokeDasharray = `${((dashOne <1 ? 0 : dashOne)*100>>0)/100}px, ${pathLength}px`;
-    }
+      elem.style.strokeDasharray = `${((dashOne < 1 ? 0 : dashOne) * 100 >> 0) / 100}px, ${pathLength}px`;
+    };
   }
 }
 
@@ -23,8 +28,8 @@ export function onStartDraw(tweenProp){
 const baseSVGDraw = {
   component: 'baseSVGDraw',
   property: 'draw',
-  Interpolate: {numbers},
-  functions: {onStart:onStartDraw}
-}
+  Interpolate: { numbers },
+  functions: { onStart: onStartDraw },
+};
 
-export default baseSVGDraw
+export default baseSVGDraw;

src/components/svgMorph.js

@@ -1,23 +1,26 @@
-import selector from '../util/selector.js' 
-import defaultOptions from '../objects/defaultOptions.js' 
-import Components from '../objects/components.js' 
-import coords from '../interpolation/coords.js' 
-import {onStartSVGMorph} from './svgMorphBase.js'
+import pathToCurve from 'svg-path-commander/src/convert/pathToCurve.js';
+import pathToString from 'svg-path-commander/src/convert/pathToString.js';
+import normalizePath from 'svg-path-commander/src/process/normalizePath.js';
+import splitPath from 'svg-path-commander/src/process/splitPath.js';
+import roundPath from 'svg-path-commander/src/process/roundPath.js';
+import invalidPathValue from 'svg-path-commander/src/util/invalidPathValue.js';
+import getPathLength from 'svg-path-commander/src/util/getPathLength.js';
+import getPointAtLength from 'svg-path-commander/src/util/getPointAtLength.js';
+import getDrawDirection from 'svg-path-commander/src/util/getDrawDirection.js';
+import epsilon from 'svg-path-commander/src/math/epsilon.js';
+import midPoint from 'svg-path-commander/src/math/midPoint.js';
+import distanceSquareRoot from 'svg-path-commander/src/math/distanceSquareRoot.js';
+import { onStartSVGMorph } from './svgMorphBase.js';
+import coords from '../interpolation/coords.js';
+import defaultOptions from '../objects/defaultOptions.js';
+import selector from '../util/selector.js';
 
-import pathToCurve from 'svg-path-commander/src/convert/pathToCurve.js'
-import pathToString from 'svg-path-commander/src/convert/pathToString.js'
-import normalizePath from 'svg-path-commander/src/process/normalizePath.js'
-import splitPath from 'svg-path-commander/src/process/splitPath.js'
-import roundPath from 'svg-path-commander/src/process/roundPath.js'
-import invalidPathValue from 'svg-path-commander/src/util/invalidPathValue.js'
-import getPathLength from 'svg-path-commander/src/util/getPathLength.js'
-import getPointAtLength from 'svg-path-commander/src/util/getPointAtLength.js'
-import getDrawDirection from 'svg-path-commander/src/util/getDrawDirection.js'
-import epsilon from 'svg-path-commander/src/math/epsilon.js'
-import midPoint from 'svg-path-commander/src/math/midPoint.js'
-import distanceSquareRoot from 'svg-path-commander/src/math/distanceSquareRoot.js'
- 
-// const SVGMorph = { property : 'path', defaultValue: [], interpolators: {numbers,coords} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* SVGMorph = {
+  property: 'path',
+  defaultValue: [],
+  interpolators: {numbers,coords},
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component Interpolation
 // function function(array1, array2, length, progress)
@@ -26,55 +29,55 @@ import distanceSquareRoot from 'svg-path-commander/src/math/distanceSquareRoot.j
 // original script flubber
 // https://github.com/veltman/flubber
 
-function polygonLength(ring){
-  return ring.reduce((length, point, i) => 
-  i ? length + distanceSquareRoot(ring[i-1],point) : 0, 0 )
+function polygonLength(ring) {
+  return ring.reduce((length, point, i) => (i
+    ? length + distanceSquareRoot(ring[i - 1], point)
+    : 0), 0);
 }
 
-function pathStringToRing(str, maxSegmentLength) {
-  let parsed = normalizePath(str,0)
-  return exactRing(parsed) || approximateRing(parsed, maxSegmentLength);
-}
 function exactRing(pathArray) {
-  let ring = [], 
-      segment = [], pathCommand = '',
-      pathlen = pathArray.length, 
-      pathLength = 0;
+  const ring = [];
+  const pathlen = pathArray.length;
+  let segment = [];
+  let pathCommand = '';
+  let pathLength = 0;
 
-  if (!pathArray.length || pathArray[0][0] !== "M") {
+  if (!pathArray.length || pathArray[0][0] !== 'M') {
     return false;
   }
 
-  for (let i = 0; i < pathlen; i++) {
-    segment = pathArray[i]
-    pathCommand = segment[0]
+  for (let i = 0; i < pathlen; i += 1) {
+    segment = pathArray[i];
+    [pathCommand] = segment;
 
-    if (pathCommand === "M" && i || pathCommand === "Z") {
+    if ((pathCommand === 'M' && i) || pathCommand === 'Z') {
       break; // !!
-    } else if ('ML'.indexOf( pathCommand) > -1) {
+    } else if ('ML'.indexOf(pathCommand) > -1) {
       ring.push([segment[1], segment[2]]);
     } else {
       return false;
     }
   }
 
-  pathLength = polygonLength(ring)
+  pathLength = polygonLength(ring);
 
   return pathlen ? { ring, pathLength } : false;
 }
 
 function approximateRing(parsed, maxSegmentLength) {
-  let ringPath = splitPath(pathToString(parsed))[0],
-      curvePath = pathToCurve(ringPath,4),
-      pathLength = getPathLength(curvePath), 
-      ring = [], numPoints = 3, point;
+  const ringPath = splitPath(pathToString(parsed))[0];
+  const curvePath = pathToCurve(ringPath, 4);
+  const pathLength = getPathLength(curvePath);
+  const ring = [];
+  let numPoints = 3;
+  let point;
 
-  if ( maxSegmentLength && !isNaN(maxSegmentLength) && +maxSegmentLength > 0 ) {
+  if (maxSegmentLength && !Number.isNaN(maxSegmentLength) && +maxSegmentLength > 0) {
     numPoints = Math.max(numPoints, Math.ceil(pathLength / maxSegmentLength));
   }
 
-  for (let i = 0; i < numPoints; i++) {  
-    point = getPointAtLength(curvePath,pathLength * i / numPoints)
+  for (let i = 0; i < numPoints; i += 1) {
+    point = getPointAtLength(curvePath, (pathLength * i) / numPoints);
     ring.push([point.x, point.y]);
   }
 
@@ -86,19 +89,36 @@ function approximateRing(parsed, maxSegmentLength) {
   return {
     pathLength,
     ring,
-    skipBisect: true
+    skipBisect: true,
   };
 }
-function rotateRing(ring, vs) {
-  let len = ring.length, min = Infinity, bestOffset, sumOfSquares, spliced;
 
-  for (let offset = 0; offset < len; offset++) {
+function pathStringToRing(str, maxSegmentLength) {
+  const parsed = normalizePath(str, 0);
+  return exactRing(parsed) || approximateRing(parsed, maxSegmentLength);
+}
+
+function rotateRing(ring, vs) {
+  const len = ring.length;
+  let min = Infinity;
+  let bestOffset;
+  let sumOfSquares = 0;
+  let spliced;
+  let d;
+  let p;
+
+  for (let offset = 0; offset < len; offset += 1) {
     sumOfSquares = 0;
 
-    vs.forEach(function(p, i) {
-      let d = distanceSquareRoot(ring[(offset + i) % len], p);
+    // vs.forEach((p, i) => {
+    //   const d = distanceSquareRoot(ring[(offset + i) % len], p);
+    //   sumOfSquares += d * d;
+    // });
+    for (let i = 0; i < vs.length; i += 1) {
+      p = vs[i];
+      d = distanceSquareRoot(ring[(offset + i) % len], p);
       sumOfSquares += d * d;
-    });
+    }
 
     if (sumOfSquares < min) {
       min = sumOfSquares;
@@ -111,33 +131,44 @@ function rotateRing(ring, vs) {
     ring.splice(ring.length, 0, ...spliced);
   }
 }
-function addPoints(ring, numPoints) {
-  let desiredLength = ring.length + numPoints,
-      // step = ring.pathLength / numPoints;
-      step = polygonLength(ring) / numPoints;
 
-  let i = 0, cursor = 0, insertAt = step / 2, a, b, segment;
+function addPoints(ring, numPoints) {
+  const desiredLength = ring.length + numPoints;
+  // const step = ring.pathLength / numPoints;
+  const step = polygonLength(ring) / numPoints;
+
+  let i = 0;
+  let cursor = 0;
+  let insertAt = step / 2;
+  let a;
+  let b;
+  let segment;
 
   while (ring.length < desiredLength) {
-    a = ring[i]
-    b = ring[(i + 1) % ring.length]
-    // console.log(step,a,b)
-    segment = distanceSquareRoot(a, b)
+    a = ring[i];
+    b = ring[(i + 1) % ring.length];
+
+    segment = distanceSquareRoot(a, b);
 
     if (insertAt <= cursor + segment) {
-      ring.splice( i + 1, 0, segment ? midPoint(a, b, (insertAt - cursor) / segment) : a.slice(0) );
+      ring.splice(i + 1, 0, segment
+        ? midPoint(a, b, (insertAt - cursor) / segment)
+        : a.slice(0));
       insertAt += step;
-      continue;
+    } else {
+      cursor += segment;
+      i += 1;
     }
-
-    cursor += segment;
-    i++;
   }
 }
+
 function bisect(ring, maxSegmentLength = Infinity) {
-  let a = [], b = []
-  for (let i = 0; i < ring.length; i++) {
-    a = ring[i], b = i === ring.length - 1 ? ring[0] : ring[i + 1];
+  let a = [];
+  let b = [];
+
+  for (let i = 0; i < ring.length; i += 1) {
+    a = ring[i];
+    b = i === ring.length - 1 ? ring[0] : ring[i + 1];
 
     // Could splice the whole set for a segment instead, but a bit messy
     while (distanceSquareRoot(a, b) > maxSegmentLength) {
@@ -147,89 +178,110 @@ function bisect(ring, maxSegmentLength = Infinity) {
   }
 }
 
-function normalizeRing(ring, maxSegmentLength) {
-  let points, skipBisect, pathLength;
+function validRing(ring) {
+  return Array.isArray(ring)
+    && ring.every((point) => Array.isArray(point)
+      && point.length === 2
+      && !Number.isNaN(point[0])
+      && !Number.isNaN(point[1]));
+}
 
-  if (typeof ring === "string") {
-    let converted = pathStringToRing(ring, maxSegmentLength)
-    ring = converted.ring
-    skipBisect = converted.skipBisect
-    pathLength = converted.pathLength
+function normalizeRing(input, maxSegmentLength) {
+  let skipBisect;
+  let pathLength;
+  let ring = input;
+
+  if (typeof (ring) === 'string') {
+    const converted = pathStringToRing(ring, maxSegmentLength);
+    ring = converted.ring;
+    skipBisect = converted.skipBisect;
+    pathLength = converted.pathLength;
   } else if (!Array.isArray(ring)) {
-    throw (invalidPathValue)
+    throw Error(`${invalidPathValue}: ${ring}`);
   }
 
-  points = ring.slice(0)
-  points.pathLength = pathLength
+  const points = ring.slice(0);
+  points.pathLength = pathLength;
 
   if (!validRing(points)) {
-    throw (invalidPathValue)
+    throw Error(`${invalidPathValue}: ${points}`);
   }
 
   // TODO skip this test to avoid scale issues?
   // Chosen epsilon (1e-6) is problematic for small coordinate range, we now use 1e-9
   if (points.length > 1 && distanceSquareRoot(points[0], points[points.length - 1]) < epsilon) {
-    points.pop()
+    points.pop();
   }
 
-  if ( !skipBisect && maxSegmentLength && !isNaN(maxSegmentLength) && (+maxSegmentLength) > 0 ) {
-    bisect(points, maxSegmentLength)
+  if (!skipBisect && maxSegmentLength
+    && !Number.isNaN(maxSegmentLength) && (+maxSegmentLength) > 0) {
+    bisect(points, maxSegmentLength);
   }
 
-  return points
-}
-function validRing(ring) {
-  return Array.isArray(ring) && ring.every( point =>
-  Array.isArray(point) && point.length === 2 && !isNaN(point[0]) && !isNaN(point[1]))
+  return points;
 }
 
-function getInterpolationPoints(pathArray1, pathArray2, morphPrecision) {
-  morphPrecision = morphPrecision || defaultOptions.morphPrecision
-  let fromRing = normalizeRing(pathArray1, morphPrecision),
-      toRing = normalizeRing(pathArray2, morphPrecision),
-      diff = fromRing.length - toRing.length;
+function getInterpolationPoints(pathArray1, pathArray2, precision) {
+  const morphPrecision = precision || defaultOptions.morphPrecision;
+  const fromRing = normalizeRing(pathArray1, morphPrecision);
+  const toRing = normalizeRing(pathArray2, morphPrecision);
+  const diff = fromRing.length - toRing.length;
 
   addPoints(fromRing, diff < 0 ? diff * -1 : 0);
   addPoints(toRing, diff > 0 ? diff : 0);
 
-  rotateRing(fromRing,toRing);
+  rotateRing(fromRing, toRing);
 
-  return [roundPath(fromRing),roundPath(toRing)]
+  return [roundPath(fromRing), roundPath(toRing)];
 }
 
-
 // Component functions
-function getSVGMorph(tweenProp){
+function getSVGMorph(/* tweenProp */) {
   return this.element.getAttribute('d');
 }
-function prepareSVGMorph(tweenProp,value){
-  let pathObject = {}, elem = value instanceof SVGElement ? value : /^\.|^\#/.test(value) ? selector(value) : null,
-      pathReg = new RegExp('\\n','ig'); // remove newlines, they brake JSON strings sometimes
+
+function prepareSVGMorph(tweenProp, value) {
+  const pathObject = {};
+  // remove newlines, they brake JSON strings sometimes
+  const pathReg = new RegExp('\\n', 'ig');
+  let elem = null;
+
+  if (value instanceof SVGElement) {
+    elem = value;
+  } else if (/^\.|^#/.test(value)) {
+    elem = selector(value);
+  }
 
   // first make sure we return pre-processed values
-  if ( typeof(value) === 'object' && value.pathArray ) {
+  if (typeof (value) === 'object' && value.pathArray) {
     return value;
-  } else if ( elem && /path|glyph/.test(elem.tagName) ) {
-    pathObject.original = elem.getAttribute('d').replace(pathReg,'');
-  } else if ( !elem && typeof(value) === 'string' ) { // maybe it's a string path already
-    pathObject.original = value.replace(pathReg,'');
+  } if (elem && ['path', 'glyph'].includes(elem.tagName)) {
+    pathObject.original = elem.getAttribute('d').replace(pathReg, '');
+  // maybe it's a string path already
+  } else if (!elem && typeof (value) === 'string') {
+    pathObject.original = value.replace(pathReg, '');
   }
+
   return pathObject;
 }
-function crossCheckSVGMorph(prop){
-  if ( this.valuesEnd[prop]){
-    let pathArray1 = this.valuesStart[prop].pathArray,
-        pathArray2 = this.valuesEnd[prop].pathArray
+function crossCheckSVGMorph(prop) {
+  if (this.valuesEnd[prop]) {
+    const pathArray1 = this.valuesStart[prop].pathArray;
+    const pathArray2 = this.valuesEnd[prop].pathArray;
     // skip already processed paths
     // allow the component to work with pre-processed values
-    if ( !pathArray1 || !pathArray2 || pathArray1 && pathArray2 && pathArray1.length !== pathArray2.length ) {
-      let p1 = this.valuesStart[prop].original,
-          p2 = this.valuesEnd[prop].original,
-          // process morphPrecision
-          morphPrecision = this._morphPrecision ? parseInt(this._morphPrecision) : defaultOptions.morphPrecision,
-          paths = getInterpolationPoints(p1,p2,morphPrecision);
-      this.valuesStart[prop].pathArray = paths[0];
-      this.valuesEnd[prop].pathArray = paths[1];
+    if (!pathArray1 || !pathArray2
+      || (pathArray1 && pathArray2 && pathArray1.length !== pathArray2.length)) {
+      const p1 = this.valuesStart[prop].original;
+      const p2 = this.valuesEnd[prop].original;
+      // process morphPrecision
+      const morphPrecision = this._morphPrecision
+        ? parseInt(this._morphPrecision, 10)
+        : defaultOptions.morphPrecision;
+
+      const [path1, path2] = getInterpolationPoints(p1, p2, morphPrecision);
+      this.valuesStart[prop].pathArray = path1;
+      this.valuesEnd[prop].pathArray = path2;
     }
   }
 }
@@ -239,9 +291,8 @@ const svgMorphFunctions = {
   prepareStart: getSVGMorph,
   prepareProperty: prepareSVGMorph,
   onStart: onStartSVGMorph,
-  crossCheck: crossCheckSVGMorph
-}
-
+  crossCheck: crossCheckSVGMorph,
+};
 
 // Component Full
 const svgMorph = {
@@ -249,19 +300,27 @@ const svgMorph = {
   property: 'path',
   defaultValue: [],
   Interpolate: coords,
-  defaultOptions: {morphPrecision : 10, morphIndex:0},
+  defaultOptions: { morphPrecision: 10, morphIndex: 0 },
   functions: svgMorphFunctions,
   // Export utils to global for faster execution
   Util: {
-    addPoints,bisect,normalizeRing,validRing, // component
-    getInterpolationPoints,pathStringToRing,
-    distanceSquareRoot,midPoint,
-    approximateRing,rotateRing,
-    pathToString,pathToCurve,// svg-path-commander
-    getPathLength,getPointAtLength,getDrawDirection,roundPath
-  }
-}
+    addPoints,
+    bisect,
+    normalizeRing,
+    validRing, // component
+    getInterpolationPoints,
+    pathStringToRing,
+    distanceSquareRoot,
+    midPoint,
+    approximateRing,
+    rotateRing,
+    pathToString,
+    pathToCurve, // svg-path-commander
+    getPathLength,
+    getPointAtLength,
+    getDrawDirection,
+    roundPath,
+  },
+};
 
-export default svgMorph
-
-Components.SVGMorph = svgMorph
+export default svgMorph;

src/components/svgMorphBase.js

@@ -1,15 +1,21 @@
-import KUTE from '../objects/kute.js'
-import coords from '../interpolation/coords.js'
+import KUTE from '../objects/kute.js';
+import coords from '../interpolation/coords.js';
 
-// const SVGMorph = { property : 'path', defaultValue: [], interpolators: {numbers,coords} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* SVGMorph = {
+  property: 'path',
+  defaultValue: [],
+  interpolators: {numbers,coords} },
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component functions
-export function onStartSVGMorph(tweenProp){
+export function onStartSVGMorph(tweenProp) {
   if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      let path1 = a.pathArray, path2 = b.pathArray, len = path2.length;
-      elem.setAttribute("d", (v === 1 ? b.original : `M${coords( path1, path2, len, v ).join('L')}Z`) );
-    }
+      const path1 = a.pathArray; const path2 = b.pathArray; const
+        len = path2.length;
+      elem.setAttribute('d', (v === 1 ? b.original : `M${coords(path1, path2, len, v).join('L')}Z`));
+    };
   }
 }
 
@@ -18,7 +24,7 @@ const baseSVGMorph = {
   component: 'baseSVGMorph',
   property: 'path',
   Interpolate: coords,
-  functions: {onStart:onStartSVGMorph}
-}
+  functions: { onStart: onStartSVGMorph },
+};
 
-export default baseSVGMorph
+export default baseSVGMorph;

src/components/svgTransform.js

@@ -1,104 +1,150 @@
-import numbers from '../interpolation/numbers.js' 
-import Components from '../objects/components.js'
-import {svgTransformOnStart} from './svgTransformBase.js'
+import numbers from '../interpolation/numbers.js';
+import { svgTransformOnStart } from './svgTransformBase.js';
 
-// const svgTransform = { property : 'svgTransform', subProperties, defaultValue, Interpolate: {numbers}, functions }
+/* const svgTransform = {
+  property: 'svgTransform',
+  subProperties,
+  defaultValue,
+  Interpolate: {numbers},
+  functions
+} */
 
 // Component Util
-function parseStringOrigin (origin, {x, width}) {
-  return /[a-z]/i.test(origin) && !/px/.test(origin) 
-    ? origin.replace(/top|left/,0).replace(/right|bottom/,100).replace(/center|middle/,50)
-    : /%/.test(origin) ? (x + parseFloat(origin) * width / 100) : parseFloat(origin);
+function parseStringOrigin(origin, { x, width }) {
+  let result;
+  if (/[a-z]/i.test(origin) && !/px/.test(origin)) {
+    result = origin.replace(/top|left/, 0)
+      .replace(/right|bottom/, 100)
+      .replace(/center|middle/, 50);
+  } else {
+    result = /%/.test(origin) ? (x + (parseFloat(origin) * width) / 100) : parseFloat(origin);
+  }
+  return result;
 }
+
 // helper function that turns transform value from string to object
-function parseTransformString (a) {
-  let d = a && /\)/.test(a) ? a.substring(0, a.length-1).split(/\)\s|\)/) : 'none', c = {};
+function parseTransformString(a) {
+  const c = {};
+  const d = a && /\)/.test(a)
+    ? a.substring(0, a.length - 1).split(/\)\s|\)/)
+    : 'none';
 
   if (d instanceof Array) {
-    for (let j=0, jl = d.length; j<jl; j++){
-      let p = d[j].trim().split('('); 
-      c[p[0]] = p[1];
+    for (let j = 0, jl = d.length; j < jl; j += 1) {
+      const [prop, val] = d[j].trim().split('(');
+      c[prop] = val;
     }
   }
   return c;
 }
-function parseTransformSVG (p,v){
-  let svgTransformObject = {};
+
+function parseTransformSVG(p, v) {
+  const svgTransformObject = {};
 
   // by default the transformOrigin is "50% 50%" of the shape box
-  let bb = this.element.getBBox();
-  let cx = bb.x + bb.width/2;
-  let cy = bb.y + bb.height/2;
+  const bb = this.element.getBBox();
+  const cx = bb.x + bb.width / 2;
+  const cy = bb.y + bb.height / 2;
 
   let origin = this._transformOrigin;
   let translation;
 
-  origin = typeof (origin) !== 'undefined' ? (origin.constructor === Array ? origin : origin.split(/\s/)) : [cx,cy];
+  if (typeof (origin) !== 'undefined') {
+    origin = origin instanceof Array ? origin : origin.split(/\s/);
+  } else {
+    origin = [cx, cy];
+  }
 
-  origin[0] = typeof origin[0] === 'number' ? origin[0] : parseStringOrigin(origin[0],bb);
-  origin[1] = typeof origin[1] === 'number' ? origin[1] : parseStringOrigin(origin[1],bb);
+  origin[0] = typeof origin[0] === 'number' ? origin[0] : parseStringOrigin(origin[0], bb);
+  origin[1] = typeof origin[1] === 'number' ? origin[1] : parseStringOrigin(origin[1], bb);
 
   svgTransformObject.origin = origin;
 
-  for ( let i in v ) { // populate the valuesStart and / or valuesEnd
-    if (i === 'rotate'){
-      svgTransformObject[i] = typeof v[i] === 'number' ? v[i] : v[i] instanceof Array ? v[i][0] : v[i].split(/\s/)[0]*1;
-    } else if (i === 'translate'){
-      translation = v[i] instanceof Array ? v[i] : /\,|\s/.test(v[i]) ? v[i].split(',') : [v[i],0];
-      svgTransformObject[i] = [translation[0]*1||0, translation[1]*1||0];
+  // populate the valuesStart and / or valuesEnd
+  Object.keys(v).forEach((i) => {
+    if (i === 'rotate') {
+      if (typeof v[i] === 'number') {
+        svgTransformObject[i] = v[i];
+      } else if (v[i] instanceof Array) {
+        [svgTransformObject[i]] = v[i];
+      } else {
+        svgTransformObject[i] = v[i].split(/\s/)[0] * 1;
+      }
+    } else if (i === 'translate') {
+      if (v[i] instanceof Array) {
+        translation = v[i];
+      } else if (/,|\s/.test(v[i])) {
+        translation = v[i].split(',');
+      } else {
+        translation = [v[i], 0];
+      }
+      svgTransformObject[i] = [translation[0] * 1 || 0, translation[1] * 1 || 0];
     } else if (/skew/.test(i)) {
-      svgTransformObject[i] = v[i]*1||0;
-    } else if (i === 'scale'){
-      svgTransformObject[i] = parseFloat(v[i])||1;
+      svgTransformObject[i] = v[i] * 1 || 0;
+    } else if (i === 'scale') {
+      svgTransformObject[i] = parseFloat(v[i]) || 1;
     }
-  }
+  });
+
   return svgTransformObject;
 }
 
 // Component Functions
-function prepareSvgTransform(p,v){
-  return parseTransformSVG.call(this,p,v);
+function prepareSvgTransform(p, v) {
+  return parseTransformSVG.call(this, p, v);
 }
+
 // returns an obect with current transform attribute value
-function getStartSvgTransform (tweenProp,value) { 
+function getStartSvgTransform(tweenProp, value) {
   const transformObject = {};
   const currentTransform = parseTransformString(this.element.getAttribute('transform'));
-  for (let j in value) { 
-    // find a value in current attribute value or add a default value
-    transformObject[j] = j in currentTransform ? currentTransform[j] : (j==='scale'?1:0); 
-  }
+
+  // find a value in current attribute value or add a default value
+  Object.keys(value).forEach((j) => {
+    const scaleValue = j === 'scale' ? 1 : 0;
+    transformObject[j] = j in currentTransform ? currentTransform[j] : scaleValue;
+  });
+
   return transformObject;
 }
 
 function svgTransformCrossCheck(prop) {
   if (!this._resetStart) return; // fix since 1.6.1 for fromTo() method
 
-  if ( this.valuesEnd[prop] ) {
-    let valuesStart = this.valuesStart[prop];
-    let valuesEnd = this.valuesEnd[prop];
-    let currentTransform = parseTransformSVG.call(this, prop, parseTransformString(this.element.getAttribute('transform')) );
+  if (this.valuesEnd[prop]) {
+    const valuesStart = this.valuesStart[prop];
+    const valuesEnd = this.valuesEnd[prop];
+    const currentTransform = parseTransformSVG.call(this, prop,
+      parseTransformString(this.element.getAttribute('transform')));
 
     // populate the valuesStart first
-    for ( let tp in currentTransform ) { 
+    Object.keys(currentTransform).forEach((tp) => {
       valuesStart[tp] = currentTransform[tp];
-    }
+    });
 
     // now try to determine the REAL translation
     const parentSVG = this.element.ownerSVGElement;
     const startMatrix = parentSVG.createSVGTransformFromMatrix(
       parentSVG.createSVGMatrix()
-      .translate(-valuesStart.origin[0],-valuesStart.origin[1]) // - origin
-      .translate('translate' in valuesStart ? valuesStart.translate[0] : 0,'translate' in valuesStart ? valuesStart.translate[1] : 0) // the current translate
-      .rotate(valuesStart.rotate||0).skewX(valuesStart.skewX||0).skewY(valuesStart.skewY||0).scale(valuesStart.scale||1)// the other functions
-      .translate(+valuesStart.origin[0],+valuesStart.origin[1]) // + origin
+        .translate(-valuesStart.origin[0], -valuesStart.origin[1]) // - origin
+        .translate('translate' in valuesStart // the current translate
+          ? valuesStart.translate[0] : 0, 'translate' in valuesStart ? valuesStart.translate[1]
+          : 0)
+        .rotate(valuesStart.rotate || 0)
+        .skewX(valuesStart.skewX || 0)
+        .skewY(valuesStart.skewY || 0)
+        .scale(valuesStart.scale || 1)// the other functions
+        .translate(+valuesStart.origin[0], +valuesStart.origin[1]), // + origin
     );
-    valuesStart.translate = [startMatrix.matrix.e,startMatrix.matrix.f]; // finally the translate we're looking for
+    // finally the translate we're looking for
+    valuesStart.translate = [startMatrix.matrix.e, startMatrix.matrix.f];
+
     // copy existing and unused properties to the valuesEnd
-    for ( let s in valuesStart) {
-      if ( !(s in valuesEnd) || s==='origin') { 
+    Object.keys(valuesStart).forEach((s) => {
+      if (!(s in valuesEnd) || s === 'origin') {
         valuesEnd[s] = valuesStart[s];
       }
-    }
+    });
   }
 }
 
@@ -107,24 +153,23 @@ export const svgTransformFunctions = {
   prepareStart: getStartSvgTransform,
   prepareProperty: prepareSvgTransform,
   onStart: svgTransformOnStart,
-  crossCheck: svgTransformCrossCheck
-}
-
+  crossCheck: svgTransformCrossCheck,
+};
 
 // Component Full
 export const svgTransform = {
   component: 'svgTransformProperty',
   property: 'svgTransform',
   // subProperties: ['translate','rotate','skewX','skewY','scale'],
-  defaultOptions: {transformOrigin:'50% 50%'},
-  defaultValue: {translate:0, rotate:0, skewX:0, skewY:0, scale:1},
-  Interpolate: {numbers},
+  defaultOptions: { transformOrigin: '50% 50%' },
+  defaultValue: {
+    translate: 0, rotate: 0, skewX: 0, skewY: 0, scale: 1,
+  },
+  Interpolate: { numbers },
   functions: svgTransformFunctions,
 
   // export utils to globals for faster execution
-  Util: { parseStringOrigin, parseTransformString, parseTransformSVG }
-}
+  Util: { parseStringOrigin, parseTransformString, parseTransformSVG },
+};
 
-export default svgTransform
-
-Components.SVGTransformProperty = svgTransform
+export default svgTransform;

src/components/svgTransformBase.js

@@ -1,42 +1,54 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js' 
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
 
-// const svgTransform = { property : 'svgTransform', subProperties, defaultValue, Interpolate: {numbers}, functions }
+/* svgTransform = {
+  property: 'svgTransform',
+  subProperties,
+  defaultValue,
+  Interpolate: {numbers},
+  functions
+} */
 
 // Component Functions
-export function svgTransformOnStart (tweenProp){
+export function svgTransformOnStart(tweenProp) {
   if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
     KUTE[tweenProp] = (l, a, b, v) => {
       let x = 0;
       let y = 0;
-      let tmp;
-      const deg = Math.PI/180;
-      const scale = 'scale' in b ? numbers(a.scale,b.scale,v) : 1;
-      const rotate = 'rotate' in b ? numbers(a.rotate,b.rotate,v) : 0;
-      const sin = Math.sin(rotate*deg);
-      const cos = Math.cos(rotate*deg);
-      const skewX = 'skewX' in b ? numbers(a.skewX,b.skewX,v) : 0;
-      const skewY = 'skewY' in b ? numbers(a.skewY,b.skewY,v) : 0;
-      const complex = rotate||skewX||skewY||scale!==1 || 0;
+      const deg = Math.PI / 180;
+      const scale = 'scale' in b ? numbers(a.scale, b.scale, v) : 1;
+      const rotate = 'rotate' in b ? numbers(a.rotate, b.rotate, v) : 0;
+      const sin = Math.sin(rotate * deg);
+      const cos = Math.cos(rotate * deg);
+      const skewX = 'skewX' in b ? numbers(a.skewX, b.skewX, v) : 0;
+      const skewY = 'skewY' in b ? numbers(a.skewY, b.skewY, v) : 0;
+      const complex = rotate || skewX || skewY || scale !== 1 || 0;
 
-      // start normalizing the translation, we start from last to first (from last chained translation)
-      // the normalized translation will handle the transformOrigin tween option and makes sure to have a consistent transformation
-      x -= complex ? b.origin[0] : 0;y -= complex ? b.origin[1] : 0; // we start with removing transformOrigin from translation
-      x *= scale;y *= scale; // we now apply the scale
-      y += skewY ? x*Math.tan(skewY*deg) : 0;x += skewX ? y*Math.tan(skewX*deg) : 0; // now we apply skews
-      tmp = cos*x - sin*y; // apply rotation as well
-      y = rotate ? sin*x + cos*y : y;x = rotate ? tmp : x;
-      x += 'translate' in b ? numbers(a.translate[0],b.translate[0],v) : 0; // now we apply the actual translation
-      y += 'translate' in b ? numbers(a.translate[1],b.translate[1],v) : 0;
-      x += complex ? b.origin[0] : 0;y += complex ? b.origin[1] : 0; // normalizing ends with the addition of the transformOrigin to the translation
+      // start normalizing the translation, we start from last to first
+      // (from last chained translation)
+      // the normalized translation will handle the transformOrigin tween option
+      // and makes sure to have a consistent transformation
+
+      // we start with removing transformOrigin from translation
+      x -= complex ? b.origin[0] : 0; y -= complex ? b.origin[1] : 0;
+      x *= scale; y *= scale; // we now apply the scale
+      // now we apply skews
+      y += skewY ? x * Math.tan(skewY * deg) : 0; x += skewX ? y * Math.tan(skewX * deg) : 0;
+      const cxsy = cos * x - sin * y; // apply rotation as well
+      y = rotate ? sin * x + cos * y : y; x = rotate ? cxsy : x;
+      // now we apply the actual translation
+      x += 'translate' in b ? numbers(a.translate[0], b.translate[0], v) : 0;
+      y += 'translate' in b ? numbers(a.translate[1], b.translate[1], v) : 0;
+      // normalizing ends with the addition of the transformOrigin to the translation
+      x += complex ? b.origin[0] : 0; y += complex ? b.origin[1] : 0;
 
       // finally we apply the transform attribute value
-      l.setAttribute('transform', ( x||y ? (`translate(${(x*1000>>0)/1000}${y ? (`,${(y*1000>>0)/1000}`) : ''})`) : '' )
-                                 +( rotate ? `rotate(${(rotate*1000>>0)/1000})` : '' )
-                                 +( skewX ? `skewX(${(skewX*1000>>0)/1000})` : '' )
-                                 +( skewY ? `skewY(${(skewY*1000>>0)/1000})` : '' )
-                                 +( scale !== 1 ? `scale(${(scale*1000>>0)/1000})` : '' ) );
-    }
+      l.setAttribute('transform', (x || y ? (`translate(${(x * 1000 >> 0) / 1000}${y ? (`,${(y * 1000 >> 0) / 1000}`) : ''})`) : '')
+                                 + (rotate ? `rotate(${(rotate * 1000 >> 0) / 1000})` : '')
+                                 + (skewX ? `skewX(${(skewX * 1000 >> 0) / 1000})` : '')
+                                 + (skewY ? `skewY(${(skewY * 1000 >> 0) / 1000})` : '')
+                                 + (scale !== 1 ? `scale(${(scale * 1000 >> 0) / 1000})` : ''));
+    };
   }
 }
 
@@ -46,9 +58,9 @@ const baseSVGTransform = {
   property: 'svgTransform',
   // subProperties: ['translate','rotate','skewX','skewY','scale'],
   // defaultValue: {translate:0, rotate:0, skewX:0, skewY:0, scale:1},
-  defaultOptions: {transformOrigin:'50% 50%'},
-  Interpolate: {numbers},
-  functions: {onStart:svgTransformOnStart}
-}
+  defaultOptions: { transformOrigin: '50% 50%' },
+  Interpolate: { numbers },
+  functions: { onStart: svgTransformOnStart },
+};
 
-export default baseSVGTransform
+export default baseSVGTransform;

src/components/textProperties.js

@@ -1,24 +1,30 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getStyleForProperty from '../process/getStyleForProperty.js'
-import trueDimension from '../util/trueDimension.js'
-import units from '../interpolation/units.js' 
-import {textPropOnStart} from './textPropertiesBase.js' 
+import defaultValues from '../objects/defaultValues.js';
+import getStyleForProperty from '../process/getStyleForProperty.js';
+import trueDimension from '../util/trueDimension.js';
+import units from '../interpolation/units.js';
+import { textPropOnStart } from './textPropertiesBase.js';
 
-// const textProperties = { category : 'textProperties', defaultValues: [], interpolators: {units} }, functions = { prepareStart, prepareProperty, onStart:{} }
+/* textProperties = {
+  category: 'textProperties',
+  defaultValues: [],
+  interpolators: {units}
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Component Properties
-const textProps = ['fontSize','lineHeight','letterSpacing','wordSpacing']
-const textOnStart = {}
+const textProps = ['fontSize', 'lineHeight', 'letterSpacing', 'wordSpacing'];
+const textOnStart = {};
 
 // Component Functions
-textProps.forEach(tweenProp => {
-  textOnStart[tweenProp] = textPropOnStart
-})
-export function getTextProp(prop) {
-  return getStyleForProperty(this.element,prop) || defaultValues[prop];
+textProps.forEach((tweenProp) => {
+  textOnStart[tweenProp] = textPropOnStart;
+});
+
+export function getTextProp(prop/* , value */) {
+  return getStyleForProperty(this.element, prop) || defaultValues[prop];
 }
-export function prepareTextProp(prop,value) {
+
+export function prepareTextProp(prop, value) {
   return trueDimension(value);
 }
 
@@ -26,20 +32,20 @@ export function prepareTextProp(prop,value) {
 const textPropFunctions = {
   prepareStart: getTextProp,
   prepareProperty: prepareTextProp,
-  onStart: textOnStart
-}
+  onStart: textOnStart,
+};
 
 // Component Full
 const textProperties = {
   component: 'textProperties',
   category: 'textProperties',
   properties: textProps,
-  defaultValues: {fontSize:0,lineHeight:0,letterSpacing:0,wordSpacing:0},
-  Interpolate: {units},
+  defaultValues: {
+    fontSize: 0, lineHeight: 0, letterSpacing: 0, wordSpacing: 0,
+  },
+  Interpolate: { units },
   functions: textPropFunctions,
-  Util: {trueDimension}
-}
+  Util: { trueDimension },
+};
 
-export default textProperties
-
-Components.TextProperties = textProperties
+export default textProperties;

src/components/textPropertiesBase.js

@@ -1,22 +1,28 @@
-import KUTE from '../objects/kute.js'
-import units from '../interpolation/units.js'  
+import KUTE from '../objects/kute.js';
+import units from '../interpolation/units.js';
 
-// const opacity = { category : 'textProperties', defaultValues: [], interpolators: {units} }, functions = { prepareStart, prepareProperty, onStart:{} }
+/* textProperties = {
+  category: 'textProperties',
+  defaultValues: [],
+  interpolators: {units},
+  functions = { prepareStart, prepareProperty, onStart:{}
+} */
 
 // Component Properties
-const textProperties = ['fontSize','lineHeight','letterSpacing','wordSpacing']
-const textOnStart = {}
+const textProperties = ['fontSize', 'lineHeight', 'letterSpacing', 'wordSpacing'];
+const textOnStart = {};
 
-export function textPropOnStart(tweenProp){
+export function textPropOnStart(tweenProp) {
   if (this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
-    KUTE[tweenProp] = (elem,a,b,v) => {
-      elem.style[tweenProp] = units(a.v,b.v,b.u,v);
-    }
+    KUTE[tweenProp] = (elem, a, b, v) => {
+      elem.style[tweenProp] = units(a.v, b.v, b.u, v);
+    };
   }
 }
-textProperties.forEach(tweenProp => {
-  textOnStart[tweenProp] = textPropOnStart
-})
+
+textProperties.forEach((tweenProp) => {
+  textOnStart[tweenProp] = textPropOnStart;
+});
 
 // Component Base
 const baseTextProperties = {
@@ -24,8 +30,8 @@ const baseTextProperties = {
   category: 'textProps',
   // properties: textProperties,
   // defaultValues: {fontSize:0,lineHeight:0,letterSpacing:0,wordSpacing:0},
-  Interpolate: {units},
-  functions: {onStart:textOnStart}
-}
+  Interpolate: { units },
+  functions: { onStart: textOnStart },
+};
 
-export default baseTextProperties
+export default baseTextProperties;

src/components/textWrite.js

@@ -1,159 +1,178 @@
-import connect from '../objects/connect.js'
-import Components from '../objects/components.js'
-import numbers from '../interpolation/numbers.js' 
+import connect from '../objects/connect.js';
+import numbers from '../interpolation/numbers.js';
 
-import {onStartWrite,charSet} from './textWriteBase.js'
+import { onStartWrite, charSet } from './textWriteBase.js';
 
 // Component Util
 // utility for multi-child targets
 // wrapContentsSpan returns an [Element] with the SPAN.tagName and a desired class
-function wrapContentsSpan(el,classNAME){
+function wrapContentsSpan(el, classNAME) {
   let textWriteWrapper;
   let newElem;
-  if ( typeof(el) === 'string' ) {
-    newElem = document.createElement('SPAN')
-    newElem.innerHTML = el
-    newElem.className = classNAME
-    return newElem
-  } else if (!el.children.length || el.children.length && el.children[0].className !== classNAME ) {
-    let elementInnerHTML = el.innerHTML
-    textWriteWrapper = document.createElement('SPAN')
-    textWriteWrapper.className = classNAME
-    textWriteWrapper.innerHTML = elementInnerHTML
-    el.appendChild(textWriteWrapper)
-    el.innerHTML = textWriteWrapper.outerHTML
-  } else if (el.children.length && el.children[0].className === classNAME){
-    textWriteWrapper = el.children[0]
+  if (typeof (el) === 'string') {
+    newElem = document.createElement('SPAN');
+    newElem.innerHTML = el;
+    newElem.className = classNAME;
+    return newElem;
   }
-  return textWriteWrapper
+  if (!el.children.length || (el.children.length && el.children[0].className !== classNAME)) {
+    const elementInnerHTML = el.innerHTML;
+    textWriteWrapper = document.createElement('SPAN');
+    textWriteWrapper.className = classNAME;
+    textWriteWrapper.innerHTML = elementInnerHTML;
+    el.appendChild(textWriteWrapper);
+    el.innerHTML = textWriteWrapper.outerHTML;
+  } else if (el.children.length && el.children[0].className === classNAME) {
+    [textWriteWrapper] = el.children;
+  }
+  return textWriteWrapper;
 }
 
-function getTextPartsArray(el,classNAME){
-  let elementsArray = []
-  if (el.children.length) {
-    let textParts = [];
+function getTextPartsArray(el, classNAME) {
+  let elementsArray = [];
+  const len = el.children.length;
+  if (len) {
+    const textParts = [];
     let remainingMarkup = el.innerHTML;
     let wrapperParts;
 
-    for ( let i=0, l = el.children.length, currentChild, childOuter, unTaggedContent; i<l; i++) {
-
-      currentChild = el.children[i]
-      childOuter = currentChild.outerHTML
-      wrapperParts = remainingMarkup.split(childOuter)
+    for (let i = 0, currentChild, childOuter, unTaggedContent; i < len; i += 1) {
+      currentChild = el.children[i];
+      childOuter = currentChild.outerHTML;
+      wrapperParts = remainingMarkup.split(childOuter);
 
       if (wrapperParts[0] !== '') {
-        unTaggedContent = wrapContentsSpan(wrapperParts[0],classNAME)
-        textParts.push( unTaggedContent )
-        remainingMarkup = remainingMarkup.replace(wrapperParts[0],'')
+        unTaggedContent = wrapContentsSpan(wrapperParts[0], classNAME);
+        textParts.push(unTaggedContent);
+        remainingMarkup = remainingMarkup.replace(wrapperParts[0], '');
       } else if (wrapperParts[1] !== '') {
-        unTaggedContent = wrapContentsSpan(wrapperParts[1].split('<')[0],classNAME)
-        textParts.push( unTaggedContent )
-        remainingMarkup = remainingMarkup.replace(wrapperParts[0].split('<')[0],'')
+        unTaggedContent = wrapContentsSpan(wrapperParts[1].split('<')[0], classNAME);
+        textParts.push(unTaggedContent);
+        remainingMarkup = remainingMarkup.replace(wrapperParts[0].split('<')[0], '');
       }
 
-      !currentChild.classList.contains(classNAME) && currentChild.classList.add(classNAME)
-      textParts.push( currentChild )
-      remainingMarkup = remainingMarkup.replace(childOuter,'')
+      if (!currentChild.classList.contains(classNAME)) currentChild.classList.add(classNAME);
+      textParts.push(currentChild);
+      remainingMarkup = remainingMarkup.replace(childOuter, '');
     }
 
-    if (remainingMarkup!==''){
-      let unTaggedRemaining = wrapContentsSpan(remainingMarkup,classNAME)
-      textParts.push( unTaggedRemaining )
+    if (remainingMarkup !== '') {
+      const unTaggedRemaining = wrapContentsSpan(remainingMarkup, classNAME);
+      textParts.push(unTaggedRemaining);
     }
 
-    elementsArray = elementsArray.concat(textParts)
+    elementsArray = elementsArray.concat(textParts);
   } else {
-    elementsArray = elementsArray.concat([wrapContentsSpan(el,classNAME)])
+    elementsArray = elementsArray.concat([wrapContentsSpan(el, classNAME)]);
   }
-  return elementsArray
+  return elementsArray;
 }
 
-function setSegments(target,newText){
-  const oldTargetSegs = getTextPartsArray( target,'text-part');
-  const newTargetSegs = getTextPartsArray( wrapContentsSpan( newText ), 'text-part' );
+function setSegments(target, newText) {
+  const oldTargetSegs = getTextPartsArray(target, 'text-part');
+  const newTargetSegs = getTextPartsArray(wrapContentsSpan(newText), 'text-part');
 
-  target.innerHTML = ''
-  target.innerHTML += oldTargetSegs.map(s=>{ s.className += ' oldText'; return s.outerHTML }).join('')
-  target.innerHTML += newTargetSegs.map(s=>{ s.className += ' newText'; return s.outerHTML.replace(s.innerHTML,'') }).join('')
+  target.innerHTML = '';
+  target.innerHTML += oldTargetSegs.map((s) => { s.className += ' oldText'; return s.outerHTML; }).join('');
+  target.innerHTML += newTargetSegs.map((s) => { s.className += ' newText'; return s.outerHTML.replace(s.innerHTML, ''); }).join('');
 
-  return [oldTargetSegs,newTargetSegs]
+  return [oldTargetSegs, newTargetSegs];
 }
 
-export function createTextTweens(target,newText,options){
-  if (target.playing) return;
+export function createTextTweens(target, newText, ops) {
+  if (target.playing) return false;
 
-  options = options || {}
-  options.duration = options.duration === 'auto' ? 'auto' : isFinite(options.duration*1) ? options.duration*1 : 1000;
+  const options = ops || {};
+  options.duration = 1000;
 
-  const segs = setSegments(target,newText);
+  if (ops.duration === 'auto') {
+    options.duration = 'auto';
+  } else if (Number.isFinite(ops.duration * 1)) {
+    options.duration = ops.duration * 1;
+  }
+
+  const TweenContructor = connect.tween;
+  const segs = setSegments(target, newText);
   const oldTargetSegs = segs[0];
   const newTargetSegs = segs[1];
-  let oldTargets = [].slice.call(target.getElementsByClassName('oldText')).reverse();
-  let newTargets = [].slice.call(target.getElementsByClassName('newText'));
+  const oldTargets = [].slice.call(target.getElementsByClassName('oldText')).reverse();
+  const newTargets = [].slice.call(target.getElementsByClassName('newText'));
 
-  let textTween = [], totalDelay = 0
+  let textTween = [];
+  let totalDelay = 0;
 
-  textTween = textTween.concat(oldTargets.map((el,i) => {
-    options.duration = options.duration === 'auto' ? oldTargetSegs[i].innerHTML.length * 75 : options.duration; 
+  textTween = textTween.concat(oldTargets.map((el, i) => {
+    options.duration = options.duration === 'auto'
+      ? oldTargetSegs[i].innerHTML.length * 75
+      : options.duration;
     options.delay = totalDelay;
-    options.onComplete = null
+    options.onComplete = null;
 
-    totalDelay += options.duration
-    return new connect.tween(el, {text:el.innerHTML}, {text:''}, options );
+    totalDelay += options.duration;
+    return new TweenContructor(el, { text: el.innerHTML }, { text: '' }, options);
   }));
-  textTween = textTween.concat(newTargets.map((el,i)=> {
-    const onComplete = () => {target.innerHTML = newText, target.playing = false};
+  textTween = textTween.concat(newTargets.map((el, i) => {
+    function onComplete() {
+      target.innerHTML = newText;
+      target.playing = false;
+    }
 
     options.duration = options.duration === 'auto' ? newTargetSegs[i].innerHTML.length * 75 : options.duration;
     options.delay = totalDelay;
-    options.onComplete = i === newTargetSegs.length-1 ? onComplete : null
-    totalDelay += options.duration
+    options.onComplete = i === newTargetSegs.length - 1 ? onComplete : null;
+    totalDelay += options.duration;
 
-    return new connect.tween(el, {text:''}, {text:newTargetSegs[i].innerHTML}, options );
+    return new TweenContructor(el, { text: '' }, { text: newTargetSegs[i].innerHTML }, options);
   }));
 
-  textTween.start = function(){
-    !target.playing && textTween.map(tw=>tw.start()) && (target.playing = true)
-  }
+  textTween.start = function startTweens() {
+    if (!target.playing) {
+      textTween.forEach((tw) => tw.start());
+      target.playing = true;
+    }
+  };
 
-  return textTween
+  return textTween;
 }
 
 // Component Functions
-function getWrite(tweenProp,value){
+function getWrite(/* tweenProp, value */) {
   return this.element.innerHTML;
 }
-function prepareText(tweenProp,value) {
-  if( tweenProp === 'number' ) {
-    return parseFloat(value)
-  } else {
-    // empty strings crash the update function
-    return value === '' ? ' ' : value
+
+function prepareText(tweenProp, value) {
+  if (tweenProp === 'number') {
+    return parseFloat(value);
   }
+  // empty strings crash the update function
+  return value === '' ? ' ' : value;
 }
 
 // All Component Functions
 export const textWriteFunctions = {
   prepareStart: getWrite,
   prepareProperty: prepareText,
-  onStart: onStartWrite
-}
+  onStart: onStartWrite,
+};
 
-// const textWrite = { category : 'textWrite', defaultValues: {}, interpolators: {numbers} }, functions = { prepareStart, prepareProperty, onStart }
+/* textWrite = {
+  category: 'textWrite',
+  defaultValues: {},
+  interpolators: {numbers},
+  functions = { prepareStart, prepareProperty, onStart }
+} */
 
 // Full Component
 export const textWrite = {
   component: 'textWriteProperties',
   category: 'textWrite',
-  properties: ['text','number'],
-  defaultValues: {text: ' ',numbers:'0'},
+  properties: ['text', 'number'],
+  defaultValues: { text: ' ', numbers: '0' },
   defaultOptions: { textChars: 'alpha' },
-  Interpolate: {numbers},
+  Interpolate: { numbers },
   functions: textWriteFunctions,
   // export to global for faster execution
-  Util: { charSet, createTextTweens }
-}
+  Util: { charSet, createTextTweens },
+};
 
-export default textWrite
-
-Components.TextWriteProperties = textWrite
+export default textWrite;

src/components/textWriteBase.js

@@ -1,66 +1,74 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js'
-import defaultOptions from '../objects/defaultOptions.js'
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
+import defaultOptions from '../objects/defaultOptions.js';
 
 // Component Values
-const lowerCaseAlpha = String("abcdefghijklmnopqrstuvwxyz").split(""), // lowercase
-    upperCaseAlpha = String("abcdefghijklmnopqrstuvwxyz").toUpperCase().split(""), // uppercase
-    nonAlpha = String("~!@#$%^&*()_+{}[];'<>,./?\=-").split(""), // symbols
-    numeric = String("0123456789").split(""), // numeric
-    alphaNumeric = lowerCaseAlpha.concat(upperCaseAlpha,numeric), // alpha numeric
-    allTypes = alphaNumeric.concat(nonAlpha); // all caracters
+const lowerCaseAlpha = String('abcdefghijklmnopqrstuvwxyz').split(''); // lowercase
+const upperCaseAlpha = String('abcdefghijklmnopqrstuvwxyz').toUpperCase().split(''); // uppercase
+const nonAlpha = String("~!@#$%^&*()_+{}[];'<>,./?=-").split(''); // symbols
+const numeric = String('0123456789').split(''); // numeric
+const alphaNumeric = lowerCaseAlpha.concat(upperCaseAlpha, numeric); // alpha numeric
+const allTypes = alphaNumeric.concat(nonAlpha); // all caracters
 
 const charSet = {
   alpha: lowerCaseAlpha, // lowercase
   upper: upperCaseAlpha, // uppercase
   symbols: nonAlpha, // symbols
-  numeric: numeric,
+  numeric,
   alphanumeric: alphaNumeric,
   all: allTypes,
-}
+};
 
-export {charSet}
+export { charSet };
 
 // Component Functions
 export const onStartWrite = {
-  text: function(tweenProp){
-    if ( !KUTE[tweenProp] && this.valuesEnd[tweenProp] ) {
+  text(tweenProp) {
+    if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
+      const chars = this._textChars;
+      let charsets = charSet[defaultOptions.textChars];
 
-      let chars = this._textChars,
-          charsets = chars in charSet ? charSet[chars] 
-                  : chars && chars.length ? chars 
-                  : charSet[defaultOptions.textChars]
+      if (chars in charSet) {
+        charsets = charSet[chars];
+      } else if (chars && chars.length) {
+        charsets = chars;
+      }
 
-      KUTE[tweenProp] = function(elem,a,b,v) {
-        
-        let initialText = '', 
-            endText = '',
-            firstLetterA = a.substring(0), 
-            firstLetterB = b.substring(0),
-            pointer = charsets[(Math.random() * charsets.length)>>0];
+      KUTE[tweenProp] = (elem, a, b, v) => {
+        let initialText = '';
+        let endText = '';
+        const finalText = b === '' ? ' ' : b;
+        const firstLetterA = a.substring(0);
+        const firstLetterB = b.substring(0);
+        const pointer = charsets[(Math.random() * charsets.length) >> 0];
 
         if (a === ' ') {
-          endText         = firstLetterB.substring(Math.min(v * firstLetterB.length, firstLetterB.length)>>0, 0 );
-          elem.innerHTML = v < 1 ? ( ( endText + pointer  ) ) : (b === '' ? ' ' : b);
+          endText = firstLetterB
+            .substring(Math.min(v * firstLetterB.length, firstLetterB.length) >> 0, 0);
+          elem.innerHTML = v < 1 ? ((endText + pointer)) : finalText;
         } else if (b === ' ') {
-          initialText     = firstLetterA.substring(0, Math.min((1-v) * firstLetterA.length, firstLetterA.length)>>0 );
-          elem.innerHTML = v < 1 ? ( ( initialText + pointer  ) ) : (b === '' ? ' ' : b);
+          initialText = firstLetterA
+            .substring(0, Math.min((1 - v) * firstLetterA.length, firstLetterA.length) >> 0);
+          elem.innerHTML = v < 1 ? ((initialText + pointer)) : finalText;
         } else {
-          initialText     = firstLetterA.substring(firstLetterA.length, Math.min(v * firstLetterA.length, firstLetterA.length)>>0 );
-          endText         = firstLetterB.substring(0,                   Math.min(v * firstLetterB.length, firstLetterB.length)>>0 );
-          elem.innerHTML = v < 1 ? ( (endText + pointer + initialText) ) : (b === '' ? ' ' : b);
+          initialText = firstLetterA
+            .substring(firstLetterA.length,
+              Math.min(v * firstLetterA.length, firstLetterA.length) >> 0);
+          endText = firstLetterB
+            .substring(0, Math.min(v * firstLetterB.length, firstLetterB.length) >> 0);
+          elem.innerHTML = v < 1 ? ((endText + pointer + initialText)) : finalText;
         }
-      }
+      };
     }
   },
-  number: function(tweenProp) {
-    if ( tweenProp in this.valuesEnd && !KUTE[tweenProp]) { // numbers can be 0
+  number(tweenProp) {
+    if (tweenProp in this.valuesEnd && !KUTE[tweenProp]) { // numbers can be 0
       KUTE[tweenProp] = (elem, a, b, v) => {
-        elem.innerHTML = numbers(a, b, v)>>0;
-      }
+        elem.innerHTML = numbers(a, b, v) >> 0;
+      };
     }
-  }
-}
+  },
+};
 
 // Base Component
 export const baseTextWrite = {
@@ -69,10 +77,10 @@ export const baseTextWrite = {
   // properties: ['text','number'],
   // defaultValues: {text: ' ',numbers:'0'},
   defaultOptions: { textChars: 'alpha' },
-  Interpolate: {numbers},
-  functions: {onStart:onStartWrite},
+  Interpolate: { numbers },
+  functions: { onStart: onStartWrite },
   // export to global for faster execution
-  Util: { charSet }
-}
+  Util: { charSet },
+};
 
-export default baseTextWrite
+export default baseTextWrite;

src/components/transformFunctions.js

@@ -1,65 +1,89 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getInlineStyle from '../process/getInlineStyle.js'
-import perspective from '../interpolation/perspective.js'
-import translate3d from '../interpolation/translate3d.js'
-import rotate3d from '../interpolation/rotate3d.js'
-import translate from '../interpolation/translate.js'
-import rotate from '../interpolation/rotate.js'
-import scale from '../interpolation/scale.js'
-import skew from '../interpolation/skew.js'
-import {onStartTransform} from './transformFunctionsBase.js'
+import defaultValues from '../objects/defaultValues.js';
+import getInlineStyle from '../process/getInlineStyle.js';
+import perspective from '../interpolation/perspective.js';
+import translate3d from '../interpolation/translate3d.js';
+import rotate3d from '../interpolation/rotate3d.js';
+import translate from '../interpolation/translate.js';
+import rotate from '../interpolation/rotate.js';
+import scale from '../interpolation/scale.js';
+import skew from '../interpolation/skew.js';
+import { onStartTransform } from './transformFunctionsBase.js';
 
-// const transformFunctions = { property : 'transform', subProperties, defaultValues, Interpolate: {translate,rotate,skew,scale}, functions } // same to svg transform, attr
+/* transformFunctions = {
+  property: 'transform',
+  subProperties,
+  defaultValues,
+  Interpolate: {translate,rotate,skew,scale},
+  functions } */
+
+// same to svg transform, attr
 // the component developed for modern browsers supporting non-prefixed transform
 
 // Component Functions
-function getTransform(tweenProperty,value){
-  let currentStyle = getInlineStyle(this.element);
+function getTransform(tweenProperty/* , value */) {
+  const currentStyle = getInlineStyle(this.element);
   return currentStyle[tweenProperty] ? currentStyle[tweenProperty] : defaultValues[tweenProperty];
 }
-function prepareTransform(prop,obj){
-  let prepAxis = ['X', 'Y', 'Z'], // coordinates
-      transformObject = {},
-      translateArray = [], rotateArray = [], skewArray = [], 
-      arrayFunctions = ['translate3d','translate','rotate3d','skew']
 
-  for (let x in obj) {
-    let pv = typeof obj[x] === 'object' && obj[x].length ? obj[x].map(v=>parseInt(v)) : parseInt(obj[x]);
+function prepareTransform(prop, obj) {
+  const prepAxis = ['X', 'Y', 'Z']; // coordinates
+  const transformObject = {};
+  const translateArray = []; const rotateArray = []; const skewArray = [];
+  const arrayFunctions = ['translate3d', 'translate', 'rotate3d', 'skew'];
+
+  Object.keys(obj).forEach((x) => {
+    const pv = typeof obj[x] === 'object' && obj[x].length
+      ? obj[x].map((v) => parseInt(v, 10))
+      : parseInt(obj[x], 10);
 
     if (arrayFunctions.includes(x)) {
-      let propId = x === 'translate' || x === 'rotate' ? `${x}3d` : x;
+      const propId = x === 'translate' || x === 'rotate' ? `${x}3d` : x;
 
-      transformObject[propId] = x === 'skew' ? (pv.length ? [pv[0]||0, pv[1]||0] : [pv||0,0] )
-                              : x === 'translate' ? (pv.length ? [pv[0]||0, pv[1]||0, pv[2]||0] : [pv||0,0,0] )
-                              : [pv[0]||0, pv[1]||0,pv[2]||0] // translate3d | rotate3d
+      if (x === 'skew') {
+        transformObject[propId] = pv.length
+          ? [pv[0] || 0, pv[1] || 0]
+          : [pv || 0, 0];
+      } else if (x === 'translate') {
+        transformObject[propId] = pv.length
+          ? [pv[0] || 0, pv[1] || 0, pv[2] || 0]
+          : [pv || 0, 0, 0];
+      } else { // translate3d | rotate3d
+        transformObject[propId] = [pv[0] || 0, pv[1] || 0, pv[2] || 0];
+      }
+    } else if (/[XYZ]/.test(x)) {
+      const fn = x.replace(/[XYZ]/, '');
+      const fnId = fn === 'skew' ? fn : `${fn}3d`;
+      const fnLen = fn === 'skew' ? 2 : 3;
+      let fnArray = [];
 
-    } else if ( /[XYZ]/.test(x) ) {
-      let fn = x.replace(/[XYZ]/,''),
-          fnId = fn === 'skew' ? fn : `${fn}3d`,
-          fnLen = fn === 'skew' ? 2 : 3,
-          fnArray = fn === 'translate' ? translateArray
-                  : fn === 'rotate' ? rotateArray
-                  : fn === 'skew' ? skewArray : {}
-      for (let fnIndex = 0; fnIndex < fnLen; fnIndex++) {
-        let fnAxis = prepAxis[fnIndex];
-        fnArray[fnIndex] = (`${fn}${fnAxis}` in obj) ? parseInt(obj[`${fn}${fnAxis}`]) : 0; 
+      if (fn === 'translate') {
+        fnArray = translateArray;
+      } else if (fn === 'rotate') {
+        fnArray = rotateArray;
+      } else if (fn === 'skew') {
+        fnArray = skewArray;
+      }
+
+      for (let fnIndex = 0; fnIndex < fnLen; fnIndex += 1) {
+        const fnAxis = prepAxis[fnIndex];
+        fnArray[fnIndex] = (`${fn}${fnAxis}` in obj) ? parseInt(obj[`${fn}${fnAxis}`], 10) : 0;
       }
       transformObject[fnId] = fnArray;
-    } else if (x==='rotate') { //  rotate 
-      transformObject['rotate3d'] = [0,0,pv]
+    } else if (x === 'rotate') { //  rotate
+      transformObject.rotate3d = [0, 0, pv];
     } else { // scale | perspective
-      transformObject[x] = x === 'scale' ? parseFloat(obj[x]) : pv
+      transformObject[x] = x === 'scale' ? parseFloat(obj[x]) : pv;
     }
-  }
+  });
+
   return transformObject;
 }
 
-function crossCheckTransform(tweenProp){
+function crossCheckTransform(tweenProp) {
   if (this.valuesEnd[tweenProp]) {
-    if ( this.valuesEnd[tweenProp] ) {
-      if (this.valuesEnd[tweenProp].perspective && !this.valuesStart[tweenProp].perspective){
-        this.valuesStart[tweenProp].perspective = this.valuesEnd[tweenProp].perspective
+    if (this.valuesEnd[tweenProp]) {
+      if (this.valuesEnd[tweenProp].perspective && !this.valuesStart[tweenProp].perspective) {
+        this.valuesStart[tweenProp].perspective = this.valuesEnd[tweenProp].perspective;
       }
     }
   }
@@ -70,24 +94,34 @@ const transformFunctions = {
   prepareStart: getTransform,
   prepareProperty: prepareTransform,
   onStart: onStartTransform,
-  crossCheck: crossCheckTransform
-}
+  crossCheck: crossCheckTransform,
+};
 
 const supportedTransformProperties = [
   'perspective',
   'translate3d', 'translateX', 'translateY', 'translateZ', 'translate',
   'rotate3d', 'rotateX', 'rotateY', 'rotateZ', 'rotate',
   'skewX', 'skewY', 'skew',
-  'scale'
-]
+  'scale',
+];
 
 const defaultTransformValues = {
   perspective: 400,
-  translate3d : [0,0,0], translateX : 0, translateY : 0, translateZ : 0, translate : [0,0],
-  rotate3d: [0,0,0], rotateX : 0, rotateY : 0, rotateZ : 0, rotate : 0,
-  skewX : 0, skewY : 0, skew: [0,0],
-  scale : 1
-}
+  translate3d: [0, 0, 0],
+  translateX: 0,
+  translateY: 0,
+  translateZ: 0,
+  translate: [0, 0],
+  rotate3d: [0, 0, 0],
+  rotateX: 0,
+  rotateY: 0,
+  rotateZ: 0,
+  rotate: 0,
+  skewX: 0,
+  skewY: 0,
+  skew: [0, 0],
+  scale: 1,
+};
 
 // Full Component
 const transformFunctionsComponent = {
@@ -97,13 +131,14 @@ const transformFunctionsComponent = {
   defaultValues: defaultTransformValues,
   functions: transformFunctions,
   Interpolate: {
-    perspective: perspective,
-    translate3d: translate3d, 
-    rotate3d: rotate3d,
-    translate: translate, rotate: rotate, scale: scale, skew: skew
-  }
-}
+    perspective,
+    translate3d,
+    rotate3d,
+    translate,
+    rotate,
+    scale,
+    skew,
+  },
+};
 
-export default transformFunctionsComponent
-
-Components.TransformFunctions = transformFunctionsComponent
+export default transformFunctionsComponent;

src/components/transformFunctionsBase.js

@@ -1,25 +1,31 @@
-import KUTE from '../objects/kute.js'
-import perspective from '../interpolation/perspective.js'
-import translate3d from '../interpolation/translate3d.js'
-import rotate3d from '../interpolation/rotate3d.js'
-import translate from '../interpolation/translate.js'
-import rotate from '../interpolation/rotate.js'
-import scale from '../interpolation/scale.js'
-import skew from '../interpolation/skew.js'
+import KUTE from '../objects/kute.js';
+import perspective from '../interpolation/perspective.js';
+import translate3d from '../interpolation/translate3d.js';
+import rotate3d from '../interpolation/rotate3d.js';
+import translate from '../interpolation/translate.js';
+import rotate from '../interpolation/rotate.js';
+import scale from '../interpolation/scale.js';
+import skew from '../interpolation/skew.js';
 
-// const transformFunctions = { property : 'transform', subProperties, defaultValues, Interpolate: {translate,rotate,skew,scale}, functions } // same to svg transform, attr
+/* transformFunctions = {
+  property: 'transform',
+  subProperties,
+  defaultValues,
+  Interpolate: {translate,rotate,skew,scale},
+  functions } */
+
+// same to svg transform, attr
 
 // Component Functions
-export function onStartTransform(tweenProp){
+export function onStartTransform(tweenProp) {
   if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
     KUTE[tweenProp] = (elem, a, b, v) => {
-      elem.style[tweenProp] = 
-          (a.perspective||b.perspective ? perspective(a.perspective,b.perspective,'px',v) : '') // one side might be 0
-        + (a.translate3d ? translate3d(a.translate3d,b.translate3d,'px',v):'') // array [x,y,z]
-        + (a.rotate3d ? rotate3d(a.rotate3d,b.rotate3d,'deg',v):'') // array [x,y,z]
-        + (a.skew ? skew(a.skew,b.skew,'deg',v):'') // array [x,y]
-        + (a.scale||b.scale ? scale(a.scale,b.scale,v):'') // one side might be 0
-    }
+      elem.style[tweenProp] = (a.perspective || b.perspective ? perspective(a.perspective, b.perspective, 'px', v) : '') // one side might be 0
+        + (a.translate3d ? translate3d(a.translate3d, b.translate3d, 'px', v) : '') // array [x,y,z]
+        + (a.rotate3d ? rotate3d(a.rotate3d, b.rotate3d, 'deg', v) : '') // array [x,y,z]
+        + (a.skew ? skew(a.skew, b.skew, 'deg', v) : '') // array [x,y]
+        + (a.scale || b.scale ? scale(a.scale, b.scale, v) : ''); // one side might be 0
+    };
   }
 }
 
@@ -27,13 +33,16 @@ export function onStartTransform(tweenProp){
 const BaseTransform = {
   component: 'baseTransform',
   property: 'transform',
-  functions: {onStart: onStartTransform},
+  functions: { onStart: onStartTransform },
   Interpolate: {
-    perspective: perspective,
-    translate3d: translate3d, 
-    rotate3d: rotate3d,
-    translate: translate, rotate: rotate, scale: scale, skew: skew
-  }
-}
+    perspective,
+    translate3d,
+    rotate3d,
+    translate,
+    rotate,
+    scale,
+    skew,
+  },
+};
 
-export default BaseTransform
+export default BaseTransform;

src/components/transformLegacy.js

@@ -1,89 +1,107 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import getInlineStyleLegacy from '../process/getInlineStyleLegacy.js'
-import perspective from '../interpolation/perspective.js'
-import translate3d from '../interpolation/translate3d.js'
-import rotate3d from '../interpolation/rotate3d.js'
-import translate from '../interpolation/translate.js'
-import rotate from '../interpolation/rotate.js'
-import scale from '../interpolation/scale.js'
-import skew from '../interpolation/skew.js'
+import support3DTransform from 'shorter-js/src/boolean/support3DTransform.js';
+import defaultValues from '../objects/defaultValues.js';
+import getInlineStyleLegacy from '../process/getInlineStyleLegacy.js';
+import perspective from '../interpolation/perspective.js';
+import translate3d from '../interpolation/translate3d.js';
+import rotate3d from '../interpolation/rotate3d.js';
+import translate from '../interpolation/translate.js';
+import rotate from '../interpolation/rotate.js';
+import scale from '../interpolation/scale.js';
+import skew from '../interpolation/skew.js';
 
-import support3DTransform from 'shorter-js/src/boolean/support3DTransform.js'
-import {onStartLegacyTransform} from './transformLegacyBase.js'
-import transformProperty from '../util/transformProperty.js'
-import supportTransform from '../util/supportLegacyTransform.js'
+import { onStartLegacyTransform } from './transformLegacyBase.js';
+import transformProperty from '../util/transformProperty.js';
+import supportTransform from '../util/supportLegacyTransform.js';
 
+/* transformFunctions = {
+  property : 'transform',
+  subProperties,
+  defaultValues,
+  Interpolate: {translate,rotate,skew,scale},
+  functions } */
 
-// const transformFunctions = { property : 'transform', subProperties, defaultValues, Interpolate: {translate,rotate,skew,scale}, functions } // same to svg transform, attr
+// same to svg transform, attr
 // the component to handle all kinds of input values and process according to browser supported API,
 // the component that handles all browsers IE9+
 
 // Component Functions
-function getLegacyTransform(tweenProperty,value){
+function getLegacyTransform(tweenProperty/* , value */) {
   const currentStyle = getInlineStyleLegacy(this.element);
   return currentStyle[tweenProperty] ? currentStyle[tweenProperty] : defaultValues[tweenProperty];
 }
-function prepareLegacyTransform(prop,obj){
-  let prepAxis = ['X', 'Y', 'Z'], // coordinates
-      translateArray = [], rotateArray = [], skewArray = [], 
-      transformObject = {},
-      arrayFunctions = ['translate3d','translate','rotate3d','skew']
+function prepareLegacyTransform(prop, obj) {
+  const prepAxis = ['X', 'Y', 'Z']; // coordinates
+  const translateArray = []; const rotateArray = []; const skewArray = [];
+  const transformObject = {};
+  const arrayFunctions = ['translate3d', 'translate', 'rotate3d', 'skew'];
 
-  for (let x in obj) {
-    let pv = typeof(obj[x]) === 'object' && obj[x].length ? obj[x].map(v=>parseInt(v)) : parseInt(obj[x])
+  Object.keys(obj).forEach((x) => {
+    const pv = typeof (obj[x]) === 'object' && obj[x].length
+      ? obj[x].map((v) => parseInt(v, 10))
+      : parseInt(obj[x], 10);
 
     if (arrayFunctions.includes(x)) {
-
-      if (support3DTransform){
-        if (x==='translate3d' || x==='rotate3d') {
-          transformObject[x] = pv
-        } else if (x==='translate'){
-          transformObject['translate3d'] = pv.length ? pv.concat(0) : [pv||0,0,0]
-        } else if (x==='rotate'){
-          transformObject['rotate3d'] = [0,0,pv||0]
-        } else if (x==='skew'){
-          transformObject[x] = pv.length ? pv : [pv||0,0]
+      if (support3DTransform) {
+        if (x === 'translate3d' || x === 'rotate3d') {
+          transformObject[x] = pv;
+        } else if (x === 'translate') {
+          transformObject.translate3d = pv.length ? pv.concat(0) : [pv || 0, 0, 0];
+        } else if (x === 'rotate') {
+          transformObject.rotate3d = [0, 0, pv || 0];
+        } else if (x === 'skew') {
+          transformObject[x] = pv.length ? pv : [pv || 0, 0];
         }
       } else if (supportTransform) {
-        if (x==='translate3d') {
-          transformObject['translate'] = [pv[0]||0,pv[1]||0]
-        } else if (x==='translate' || x==='skew'){
-          transformObject[x] = pv.length ? pv : [pv||0,0]
-        } else if (x==='rotate3d'){
-          transformObject['rotate'] = pv[2]||pv[1]||pv[0]
-        } else if (x==='rotate'){
-          transformObject[x] = pv
+        if (x === 'translate3d') {
+          transformObject.translate = [pv[0] || 0, pv[1] || 0];
+        } else if (x === 'translate' || x === 'skew') {
+          transformObject[x] = pv.length ? pv : [pv || 0, 0];
+        } else if (x === 'rotate3d') {
+          transformObject.rotate = pv[2] || pv[1] || pv[0];
+        } else if (x === 'rotate') {
+          transformObject[x] = pv;
         }
       }
+    } else if (/[XYZ]/.test(x)) {
+      const fn = x.replace(/[XYZ]/, '');
+      const fnId = fn === 'skew' || !support3DTransform ? fn : `${fn}3d`;
+      const fnLen = fn === 'skew' || (!support3DTransform && fn === 'translate') ? 2 : 3;
+      let fnArray = [];
 
-    } else if ( /[XYZ]/.test(x) ) {
-      let fn = x.replace(/[XYZ]/,''),
-          fnId = fn === 'skew' || !support3DTransform ? fn : `${fn}3d`,
-          fnLen = fn === 'skew' || (!support3DTransform && fn === 'translate') ? 2 : 3,
-          fnArray = fn === 'translate' ? translateArray
-                  : fn === 'rotate' && support3DTransform ? rotateArray
-                  : fn === 'skew' ? skewArray : {}
-      for (let fnIndex = 0; fnIndex < fnLen; fnIndex++) {
-        let fnAxis = prepAxis[fnIndex];
-        fnArray[fnIndex] = (`${fn}${fnAxis}` in obj) ? parseInt(obj[`${fn}${fnAxis}`]) : 0; 
+      if (fn === 'translate') {
+        fnArray = translateArray;
+      } else if (fn === 'rotate') {
+        fnArray = rotateArray;
+      } else if (fn === 'skew') {
+        fnArray = skewArray;
       }
-      transformObject[fnId] = support3DTransform ? fnArray : fn === 'rotate' ? fnArray[2]||fnArray[1]||fnArray[0] : fnArray;
-    } else if (x==='rotate') { // 2d rotate
-      let pType = support3DTransform ? 'rotate3d' : 'rotate';
-      transformObject[pType] = support3DTransform ? [0,0,pv] : pv
+
+      for (let fnIndex = 0; fnIndex < fnLen; fnIndex += 1) {
+        const fnAxis = prepAxis[fnIndex];
+        fnArray[fnIndex] = (`${fn}${fnAxis}` in obj) ? parseInt(obj[`${fn}${fnAxis}`], 10) : 0;
+      }
+
+      if (support3DTransform) {
+        transformObject[fnId] = fnArray;
+      } else {
+        transformObject[fnId] = fn === 'rotate' ? (fnArray[2] || fnArray[1] || fnArray[0]) : fnArray;
+      }
+    } else if (x === 'rotate') { // 2d rotate
+      const pType = support3DTransform ? 'rotate3d' : 'rotate';
+      transformObject[pType] = support3DTransform ? [0, 0, pv] : pv;
     } else { // scale | perspective
-      transformObject[x] = x === 'scale' ? parseFloat(obj[x]) : pv
+      transformObject[x] = x === 'scale' ? parseFloat(obj[x]) : pv;
     }
-  }
+  });
+
   return transformObject;
 }
 
-function crossCheckLegacyTransform(tweenProp){
+function crossCheckLegacyTransform(tweenProp) {
   if (this.valuesEnd[tweenProp]) {
-    if ( this.valuesEnd[tweenProp] && support3DTransform) {
-      if (this.valuesEnd[tweenProp].perspective && !this.valuesStart[tweenProp].perspective){
-        this.valuesStart[tweenProp].perspective = this.valuesEnd[tweenProp].perspective
+    if (this.valuesEnd[tweenProp] && support3DTransform) {
+      if (this.valuesEnd[tweenProp].perspective && !this.valuesStart[tweenProp].perspective) {
+        this.valuesStart[tweenProp].perspective = this.valuesEnd[tweenProp].perspective;
       }
     }
   }
@@ -94,24 +112,34 @@ const transformLegacyFunctions = {
   prepareStart: getLegacyTransform,
   prepareProperty: prepareLegacyTransform,
   onStart: onStartLegacyTransform,
-  crossCheck: crossCheckLegacyTransform
-}
+  crossCheck: crossCheckLegacyTransform,
+};
 
 const legacyTransformValues = {
   perspective: 400,
-  translate3d: [0,0,0], translateX: 0, translateY: 0, translateZ: 0, translate: [0,0],
-  rotate3d: [0,0,0], rotateX: 0, rotateY: 0, rotateZ: 0, rotate: 0,
-  skewX: 0, skewY: 0, skew: [0,0],
-  scale: 1
-}
+  translate3d: [0, 0, 0],
+  translateX: 0,
+  translateY: 0,
+  translateZ: 0,
+  translate: [0, 0],
+  rotate3d: [0, 0, 0],
+  rotateX: 0,
+  rotateY: 0,
+  rotateZ: 0,
+  rotate: 0,
+  skewX: 0,
+  skewY: 0,
+  skew: [0, 0],
+  scale: 1,
+};
 
 const legacyTransformProperties = [
   'perspective',
   'translate3d', 'translateX', 'translateY', 'translateZ', 'translate',
   'rotate3d', 'rotateX', 'rotateY', 'rotateZ', 'rotate',
   'skewX', 'skewY', 'skew',
-  'scale'
-] 
+  'scale',
+];
 
 // Full Component
 const transformLegacyComponent = {
@@ -121,14 +149,15 @@ const transformLegacyComponent = {
   defaultValues: legacyTransformValues,
   functions: transformLegacyFunctions,
   Interpolate: {
-    perspective: perspective,
-    translate3d: translate3d, 
-    rotate3d: rotate3d,
-    translate: translate, rotate: rotate, scale: scale, skew: skew
+    perspective,
+    translate3d,
+    rotate3d,
+    translate,
+    rotate,
+    scale,
+    skew,
   },
-  Util: [transformProperty]
-}
+  Util: [transformProperty],
+};
 
-export default transformLegacyComponent
-
-Components.TransformLegacy = transformLegacyComponent
+export default transformLegacyComponent;

src/components/transformLegacyBase.js

@@ -1,40 +1,44 @@
-import KUTE from '../objects/kute.js'
-import perspective from '../interpolation/perspective.js'
-import translate3d from '../interpolation/translate3d.js'
-import rotate3d from '../interpolation/rotate3d.js'
-import translate from '../interpolation/translate.js'
-import rotate from '../interpolation/rotate.js'
-import scale from '../interpolation/scale.js'
-import skew from '../interpolation/skew.js'
+import support3DTransform from 'shorter-js/src/boolean/support3DTransform.js';
+import KUTE from '../objects/kute.js';
+import perspective from '../interpolation/perspective.js';
+import translate3d from '../interpolation/translate3d.js';
+import rotate3d from '../interpolation/rotate3d.js';
+import translate from '../interpolation/translate.js';
+import rotate from '../interpolation/rotate.js';
+import scale from '../interpolation/scale.js';
+import skew from '../interpolation/skew.js';
 
-import support3DTransform from 'shorter-js/src/boolean/support3DTransform.js'
-import supportTransform from '../util/supportLegacyTransform.js'
-import transformProperty from '../util/transformProperty.js'
+import supportTransform from '../util/supportLegacyTransform.js';
+import transformProperty from '../util/transformProperty.js';
 
+/* baseLegacyTransform = {
+  property: 'transform',
+  subProperties,
+  defaultValues,
+  Interpolate: {translate,rotate,skew,scale},
+  functions } */
 
-// const baseLegacyTransform = { property : 'transform', subProperties, defaultValues, Interpolate: {translate,rotate,skew,scale}, functions } // same to svg transform, attr
+// same to svg transform, attr
 // the component that handles all browsers IE9+
 
 // Component Functions
-export function onStartLegacyTransform(tweenProp){
+export function onStartLegacyTransform(tweenProp) {
   if (!KUTE[tweenProp] && this.valuesEnd[tweenProp]) {
-    if (support3DTransform){
+    if (support3DTransform) {
       KUTE[tweenProp] = (elem, a, b, v) => {
-        elem.style[transformProperty] = 
-            (a.perspective||b.perspective ? perspective(a.perspective,b.perspective,'px',v) : '') // one side might be 0
-          + (a.translate3d ? translate3d(a.translate3d,b.translate3d,'px',v):'') // array [x,y,z]
-          + (a.rotate3d ? rotate3d(a.rotate3d,b.rotate3d,'deg',v):'') // array [x,y,z]
-          + (a.skew ? skew(a.skew,b.skew,'deg',v):'') // array [x,y]
-          + (a.scale||b.scale ? scale(a.scale,b.scale,v):'') // one side might be 0
-      }
+        elem.style[transformProperty] = (a.perspective || b.perspective ? perspective(a.perspective, b.perspective, 'px', v) : '') // one side might be 0
+          + (a.translate3d ? translate3d(a.translate3d, b.translate3d, 'px', v) : '') // array [x,y,z]
+          + (a.rotate3d ? rotate3d(a.rotate3d, b.rotate3d, 'deg', v) : '') // array [x,y,z]
+          + (a.skew ? skew(a.skew, b.skew, 'deg', v) : '') // array [x,y]
+          + (a.scale || b.scale ? scale(a.scale, b.scale, v) : ''); // one side might be 0
+      };
     } else if (supportTransform) {
       KUTE[tweenProp] = (elem, a, b, v) => {
-        elem.style[transformProperty] = 
-            (a.translate ? translate(a.translate,b.translate,'px',v):'') // array [x,y]
-          + ((a.rotate||b.rotate) ? rotate(a.rotate,b.rotate,'deg',v):'') // one side might be 0
-          + (a.skew ? skew(a.skew,b.skew,'deg',v):'') // array [x,y]
-          + (a.scale||b.scale ? scale(a.scale,b.scale,v):'') // one side might be 0
-      }
+        elem.style[transformProperty] = (a.translate ? translate(a.translate, b.translate, 'px', v) : '') // array [x,y]
+          + ((a.rotate || b.rotate) ? rotate(a.rotate, b.rotate, 'deg', v) : '') // one side might be 0
+          + (a.skew ? skew(a.skew, b.skew, 'deg', v) : '') // array [x,y]
+          + (a.scale || b.scale ? scale(a.scale, b.scale, v) : ''); // one side might be 0
+      };
     }
   }
 }
@@ -43,14 +47,17 @@ export function onStartLegacyTransform(tweenProp){
 const BaseLegacyTransform = {
   component: 'baseLegacyTransform',
   property: 'transform',
-  functions: {onStart: onStartLegacyTransform},
+  functions: { onStart: onStartLegacyTransform },
   Interpolate: {
-    perspective: perspective,
-    translate3d: translate3d, 
-    rotate3d: rotate3d,
-    translate: translate, rotate: rotate, scale: scale, skew: skew
+    perspective,
+    translate3d,
+    rotate3d,
+    translate,
+    rotate,
+    scale,
+    skew,
   },
-  Util: {transformProperty}
-}
+  Util: { transformProperty },
+};
 
-export default BaseLegacyTransform
+export default BaseLegacyTransform;

src/components/transformMatrix.js

@@ -1,88 +1,106 @@
-import defaultValues from '../objects/defaultValues.js'
-import Components from '../objects/components.js'
-import numbers from '../interpolation/numbers.js' 
-import arrays from '../interpolation/arrays.js' 
-import {onStartTransform} from './transformMatrixBase.js'
+import defaultValues from '../objects/defaultValues.js';
+import numbers from '../interpolation/numbers.js';
+import arrays from '../interpolation/arrays.js';
+import { onStartTransform } from './transformMatrixBase.js';
 
-// const transformMatrix = { property : 'transform', defaultValue: {}, interpolators: {} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* transformMatrix = {
+  property : 'transform',
+  defaultValue: {},
+  interpolators: {}
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component name
-const matrixComponent = 'transformMatrix'
+const matrixComponent = 'transformMatrix';
 
 // Component Functions
-function getTransform(tweenProp, value){
-  let transformObject = {}
+function getTransform(tweenProp, value) {
+  const transformObject = {};
+  const currentValue = this.element[matrixComponent];
 
-  if (this.element[matrixComponent]) {
-    const currentValue = this.element[matrixComponent]
-    for (const vS in currentValue) {
-      transformObject[vS] = currentValue[vS]
-    }
+  if (currentValue) {
+    Object.keys(currentValue).forEach((vS) => {
+      transformObject[vS] = currentValue[vS];
+    });
   } else {
-    for (const vE in value){
-      transformObject[vE] = vE === 'perspective' ? value[vE] : defaultValues.transform[vE]
-    }
+    Object.keys(value).forEach((vE) => {
+      transformObject[vE] = vE === 'perspective' ? value[vE] : defaultValues.transform[vE];
+    });
   }
-  return transformObject
+  return transformObject;
 }
-function prepareTransform(tweenProp,value){
-  if ( typeof(value) === 'object' && !value.length) {
-    let pv,
-        transformObject = {},
-        translate3dObj = {},
-        rotate3dObj = {},
-        scale3dObj = {},
-        skewObj = {},
-        axis = [{translate3d:translate3dObj},{rotate3d:rotate3dObj},{skew:skewObj},{scale3d:scale3dObj}];
 
-    for (const prop in value) {
-      if ( /3d/.test(prop) && typeof(value[prop]) === 'object' && value[prop].length ){
-        pv = value[prop].map( (v) => prop === 'scale3d' ? parseFloat(v) : parseInt(v) )
-        transformObject[prop] = prop === 'scale3d' ? [pv[0]||1, pv[1]||1, pv[2]||1] : [pv[0]||0, pv[1]||0, pv[2]||0]
-      } else if ( /[XYZ]/.test(prop) ) {
-        let obj = /translate/.test(prop) ? translate3dObj 
-                : /rotate/.test(prop) ? rotate3dObj 
-                : /scale/.test(prop) ? scale3dObj 
-                : /skew/.test(prop) ? skewObj : {};
-        let idx = prop.replace(/translate|rotate|scale|skew/,'').toLowerCase()
-        obj[idx] = /scale/.test(prop) ? parseFloat(value[prop]) : parseInt(value[prop])
-      } else if ('skew' === prop ) {
-        pv = value[prop].map(v => parseInt(v)||0)
-        transformObject[prop] = [pv[0]||0, pv[1]||0]
+function prepareTransform(tweenProp, value) {
+  if (typeof (value) === 'object' && !value.length) {
+    let pv;
+    const transformObject = {};
+    const translate3dObj = {};
+    const rotate3dObj = {};
+    const scale3dObj = {};
+    const skewObj = {};
+    const axis = [{ translate3d: translate3dObj },
+      { rotate3d: rotate3dObj },
+      { skew: skewObj },
+      { scale3d: scale3dObj }];
+
+    Object.keys(value).forEach((prop) => {
+      if (/3d/.test(prop) && typeof (value[prop]) === 'object' && value[prop].length) {
+        pv = value[prop].map((v) => (prop === 'scale3d' ? parseFloat(v) : parseInt(v, 10)));
+        transformObject[prop] = prop === 'scale3d' ? [pv[0] || 1, pv[1] || 1, pv[2] || 1] : [pv[0] || 0, pv[1] || 0, pv[2] || 0];
+      } else if (/[XYZ]/.test(prop)) {
+        let obj = {};
+        if (/translate/.test(prop)) {
+          obj = translate3dObj;
+        } else if (/rotate/.test(prop)) {
+          obj = rotate3dObj;
+        } else if (/scale/.test(prop)) {
+          obj = scale3dObj;
+        } else if (/skew/.test(prop)) {
+          obj = skewObj;
+        }
+        const idx = prop.replace(/translate|rotate|scale|skew/, '').toLowerCase();
+        obj[idx] = /scale/.test(prop) ? parseFloat(value[prop]) : parseInt(value[prop], 10);
+      } else if (prop === 'skew') {
+        pv = value[prop].map((v) => parseInt(v, 10) || 0);
+        transformObject[prop] = [pv[0] || 0, pv[1] || 0];
       } else { // perspective
-        transformObject[prop] = parseInt(value[prop]);
+        transformObject[prop] = parseInt(value[prop], 10);
       }
-    }
+    });
 
-    axis.map((o) => {
-      let tp = Object.keys(o)[0], tv = o[tp]
-      if ( Object.keys(tv).length && !transformObject[tp]) {
-        transformObject[tp] = tp === 'scale3d' ? [tv.x || 1, tv.y || 1, tv.z || 1] 
-                            : tp === 'skew' ? [tv.x || 0, tv.y || 0]
-                            : [tv.x || 0, tv.y || 0, tv.z || 0]; // translate|rotate
+    axis.forEach((o) => {
+      const tp = Object.keys(o)[0];
+      const tv = o[tp];
+      if (Object.keys(tv).length && !transformObject[tp]) {
+        if (tp === 'scale3d') {
+          transformObject[tp] = [tv.x || 1, tv.y || 1, tv.z || 1];
+        } else if (tp === 'skew') {
+          transformObject[tp] = [tv.x || 0, tv.y || 0];
+        } else { // translate | rotate
+          transformObject[tp] = [tv.x || 0, tv.y || 0, tv.z || 0];
+        }
       }
-    })
+    });
     return transformObject;
-  } else { // string | array
+  } // string | array
   // if ( typeof (value) === 'object' && value.length ) {
   // } else if ( typeof (value) === string && value.includes('matrix')) {
-    // decompose matrix to object
-    console.error(`KUTE.js - "${value}" is not valid/supported transform function`)
-  }
+  // decompose matrix to object
+  throw Error(`KUTE.js - "${value}" is not valid/supported transform function`);
 }
 
-function onCompleteTransform(tweenProp){
+function onCompleteTransform(tweenProp) {
   if (this.valuesEnd[tweenProp]) {
-    this.element[matrixComponent] = {}
-    for (const tf in this.valuesEnd[tweenProp]){
-      this.element[matrixComponent][tf] = this.valuesEnd[tweenProp][tf]
-    }
+    this.element[matrixComponent] = {};
+    Object.keys(this.valuesEnd[tweenProp]).forEach((tf) => {
+      this.element[matrixComponent][tf] = this.valuesEnd[tweenProp][tf];
+    });
   }
 }
-function crossCheckTransform(tweenProp){
+function crossCheckTransform(tweenProp) {
   if (this.valuesEnd[tweenProp]) {
-    if (this.valuesEnd[tweenProp].perspective && !this.valuesStart[tweenProp].perspective){
-      this.valuesStart[tweenProp].perspective = this.valuesEnd[tweenProp].perspective
+    if (this.valuesEnd[tweenProp].perspective && !this.valuesStart[tweenProp].perspective) {
+      this.valuesStart[tweenProp].perspective = this.valuesEnd[tweenProp].perspective;
     }
   }
 }
@@ -93,25 +111,44 @@ const matrixFunctions = {
   prepareProperty: prepareTransform,
   onStart: onStartTransform,
   onComplete: onCompleteTransform,
-  crossCheck: crossCheckTransform
-}
+  crossCheck: crossCheckTransform,
+};
 
 // Component Full Object
 const matrixTransform = {
   component: matrixComponent,
   property: 'transform',
-  // subProperties: ['perspective','translate3d','translateX','translateY','translateZ','rotate3d','rotateX','rotateY','rotateZ','skew','skewX','skewY','scale3d','scaleX','scaleY','scaleZ'],
-  defaultValue: {perspective:400,translate3d:[0,0,0],translateX:0,translateY:0,translateZ:0,rotate3d:[0,0,0],rotateX:0,rotateY:0,rotateZ:0,skew:[0,0],skewX:0,skewY:0,scale3d:[1,1,1],scaleX:1,scaleY:1,scaleZ:1},
+  /* subProperties: [
+    'perspective', 'translate3d', 'translateX', 'translateY', 'translateZ',
+    'rotate3d', 'rotateX', 'rotateY', 'rotateZ',
+    'skew','skewX','skewY',
+    'scale3d', 'scaleX', 'scaleY', 'scaleZ'], */
+  defaultValue: {
+    perspective: 400,
+    translate3d: [0, 0, 0],
+    translateX: 0,
+    translateY: 0,
+    translateZ: 0,
+    rotate3d: [0, 0, 0],
+    rotateX: 0,
+    rotateY: 0,
+    rotateZ: 0,
+    skew: [0, 0],
+    skewX: 0,
+    skewY: 0,
+    scale3d: [1, 1, 1],
+    scaleX: 1,
+    scaleY: 1,
+    scaleZ: 1,
+  },
   functions: matrixFunctions,
   Interpolate: {
     perspective: numbers,
     translate3d: arrays,
     rotate3d: arrays,
     skew: arrays,
-    scale3d: arrays
-  }
-}
+    scale3d: arrays,
+  },
+};
 
-export default matrixTransform
-
-Components.TransformMatrix = matrixTransform
+export default matrixTransform;

src/components/transformMatrixBase.js

@@ -1,62 +1,81 @@
-import KUTE from '../objects/kute.js'
-import numbers from '../interpolation/numbers.js'
-import arrays from '../interpolation/arrays.js'
+import KUTE from '../objects/kute.js';
+import numbers from '../interpolation/numbers.js';
+import arrays from '../interpolation/arrays.js';
 
-// const transformMatrix = { property : 'transform', defaultValue: {}, interpolators: {} }, functions = { prepareStart, prepareProperty, onStart, crossCheck }
+/* transformMatrix = {
+  property : 'transform',
+  defaultValue: {},
+  interpolators: {},
+  functions = { prepareStart, prepareProperty, onStart, crossCheck }
+} */
 
 // Component name
-const matrixComponent = 'transformMatrixBase'
+const matrixComponent = 'transformMatrixBase';
 
 // Component special
-const CSS3Matrix = typeof(DOMMatrix) !== 'undefined' ? DOMMatrix 
-                 : typeof(WebKitCSSMatrix) !== 'undefined' ? WebKitCSSMatrix
-                 : typeof(CSSMatrix) !== 'undefined' ? CSSMatrix
-                 : typeof(MSCSSMatrix) !== 'undefined' ? MSCSSMatrix
-                 : null
+// this component is restricted to modern browsers only
+const CSS3Matrix = typeof (DOMMatrix) !== 'undefined' ? DOMMatrix : null;
 
 // Component Functions
 export const onStartTransform = {
-  transform : function(tweenProp) {
-    if (this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
-      
+  transform(tweenProp) {
+    if (CSS3Matrix && this.valuesEnd[tweenProp] && !KUTE[tweenProp]) {
       KUTE[tweenProp] = (elem, a, b, v) => {
-        let matrix = new CSS3Matrix(), transformObject = {}
+        let matrix = new CSS3Matrix();
+        const tObject = {};
 
-        for ( const p in b ) {
-          transformObject[p] = p === 'perspective' ? numbers(a[p],b[p],v) : arrays(a[p],b[p],v)
+        Object.keys(b).forEach((p) => {
+          tObject[p] = p === 'perspective' ? numbers(a[p], b[p], v) : arrays(a[p], b[p], v);
+        });
+
+        // set perspective
+        if (tObject.perspective) matrix.m34 = -1 / tObject.perspective;
+
+        // set translate
+        matrix = tObject.translate3d
+          ? matrix.translate(tObject.translate3d[0], tObject.translate3d[1], tObject.translate3d[2])
+          : matrix;
+
+        // set rotation
+        matrix = tObject.rotate3d
+          ? matrix.rotate(tObject.rotate3d[0], tObject.rotate3d[1], tObject.rotate3d[2])
+          : matrix;
+
+        // set skew
+        if (tObject.skew) {
+          matrix = tObject.skew[0] ? matrix.skewX(tObject.skew[0]) : matrix;
+          matrix = tObject.skew[1] ? matrix.skewY(tObject.skew[1]) : matrix;
         }
 
-        transformObject.perspective && (matrix.m34 = -1/transformObject.perspective)// set perspective
-        matrix = transformObject.translate3d ? (matrix.translate(transformObject.translate3d[0],transformObject.translate3d[1],transformObject.translate3d[2])) : matrix // set translate
-        matrix = transformObject.rotate3d ? (matrix.rotate(transformObject.rotate3d[0],transformObject.rotate3d[1],transformObject.rotate3d[2])) : matrix // set rotation
-        if (transformObject.skew) { // set skew
-          matrix = transformObject.skew[0] ? matrix.skewX(transformObject.skew[0]) : matrix;
-          matrix = transformObject.skew[1] ? matrix.skewY(transformObject.skew[1]) : matrix;
-        }
-        matrix = transformObject.scale3d ? (matrix.scale(transformObject.scale3d[0],transformObject.scale3d[1],transformObject.scale3d[2])): matrix // set scale
-        elem.style[tweenProp] = matrix.toString() // set element style
-      }
+        // set scale
+        matrix = tObject.scale3d
+          ? matrix.scale(tObject.scale3d[0], tObject.scale3d[1], tObject.scale3d[2])
+          : matrix;
+
+        // set element style
+        elem.style[tweenProp] = matrix.toString();
+      };
     }
   },
-  CSS3Matrix: function(prop) {
-    if (this.valuesEnd.transform){
-      !KUTE[prop] && (KUTE[prop] = CSS3Matrix)
+  CSS3Matrix(prop) {
+    if (CSS3Matrix && this.valuesEnd.transform) {
+      if (!KUTE[prop]) KUTE[prop] = CSS3Matrix;
     }
   },
-}
+};
 
 // Component Base Object
 export const baseMatrixTransform = {
   component: matrixComponent,
   property: 'transform',
-  functions: {onStart: onStartTransform},
+  functions: { onStart: onStartTransform },
   Interpolate: {
     perspective: numbers,
     translate3d: arrays,
     rotate3d: arrays,
     skew: arrays,
-    scale3d: arrays
-  }
-}
+    scale3d: arrays,
+  },
+};
 
-export default baseMatrixTransform
+export default baseMatrixTransform;

src/core/add.js

@@ -1,2 +1,3 @@
-import Tweens from '../objects/tweens.js'
-export default (tw) => Tweens.push(tw)
+import Tweens from '../objects/tweens.js';
+
+export default (tw) => Tweens.push(tw);

src/core/getAll.js

@@ -1,2 +1,3 @@
-import Tweens from '../objects/tweens.js'
-export default () => Tweens
+import Tweens from '../objects/tweens.js';
+
+export default () => Tweens;

src/core/internals.js

@@ -1,9 +1,9 @@
-import add from './add.js'
-import remove from './remove.js'
-import getAll from './getAll.js'
-import removeAll from './removeAll.js'
-import {stop} from './render.js'
-import linkInterpolation from './linkInterpolation.js'
+import add from './add.js';
+import remove from './remove.js';
+import getAll from './getAll.js';
+import removeAll from './removeAll.js';
+import { stop } from './render.js';
+import linkInterpolation from './linkInterpolation.js';
 
 export default {
   add,
@@ -11,5 +11,5 @@ export default {
   getAll,
   removeAll,
   stop,
-  linkInterpolation
-}
+  linkInterpolation,
+};

src/core/linkInterpolation.js

@@ -1,34 +1,32 @@
-import KUTE from '../objects/kute.js'
-import linkProperty from '../objects/linkProperty.js'
-import supportedProperties from '../objects/supportedProperties.js'
+import KUTE from '../objects/kute.js';
+import linkProperty from '../objects/linkProperty.js';
+import supportedProperties from '../objects/supportedProperties.js';
 
-export default function() { // DON'T change
-  for (const component in linkProperty){
-    const componentLink = linkProperty[component]
-    const componentProps = supportedProperties[component]
+export default function linkInterpolation() { // DON'T change
+  Object.keys(linkProperty).forEach((component) => {
+    const componentLink = linkProperty[component];
+    const componentProps = supportedProperties[component];
 
-    for ( const fnObj in componentLink ) {
-      if ( typeof(componentLink[fnObj]) === 'function' 
-          && Object.keys(this.valuesEnd).some(i => componentProps && componentProps.includes(i) 
-          || i=== 'attr' && Object.keys(this.valuesEnd[i]).some(j => componentProps && componentProps.includes(j)) ) ) 
-      { // ATTR, colors, scroll, boxModel, borderRadius
-        !KUTE[fnObj] && (KUTE[fnObj] = componentLink[fnObj])
+    Object.keys(componentLink).forEach((fnObj) => {
+      if (typeof (componentLink[fnObj]) === 'function' // ATTR, colors, scroll, boxModel, borderRadius
+          && Object.keys(this.valuesEnd).some((i) => (componentProps && componentProps.includes(i))
+          || (i === 'attr' && Object.keys(this.valuesEnd[i]).some((j) => componentProps && componentProps.includes(j))))) {
+        if (!KUTE[fnObj]) KUTE[fnObj] = componentLink[fnObj];
       } else {
-
-        for ( const prop in this.valuesEnd ) {
-          for ( const i in this.valuesEnd[prop] ) {
-            if ( typeof(componentLink[i]) === 'function' ) { // transformCSS3
-              !KUTE[i] && (KUTE[i] = componentLink[i])
+        Object.keys(this.valuesEnd).forEach((prop) => {
+          Object.keys(this.valuesEnd[prop]).forEach((i) => {
+            if (typeof (componentLink[i]) === 'function') { // transformCSS3
+              if (!KUTE[i]) KUTE[i] = componentLink[i];
             } else {
-              for (const j in componentLink[fnObj]){
-                if (componentLink[i] && typeof(componentLink[i][j]) === 'function' ) { // transformMatrix
-                  !KUTE[j] && (KUTE[j] = componentLink[i][j])
+              Object.keys(componentLink[fnObj]).forEach((j) => {
+                if (componentLink[i] && typeof (componentLink[i][j]) === 'function') { // transformMatrix
+                  if (!KUTE[j]) KUTE[j] = componentLink[i][j];
                 }
-              }
+              });
             }
-          }
-        }
+          });
+        });
       }
-    }
-  }
+    });
+  });
 }

src/core/queueStart.js

@@ -1,17 +1,18 @@
-import onStart from '../objects/onStart.js'
-import linkInterpolation from './linkInterpolation.js'
+import onStart from '../objects/onStart.js';
+import linkInterpolation from './linkInterpolation.js';
 
-export default function(){
+export default function queueStart() {
   // fire onStart actions
-  for (let obj in onStart) {
+  Object.keys(onStart).forEach((obj) => {
     if (typeof (onStart[obj]) === 'function') {
-      onStart[obj].call(this,obj) // easing functions
+      onStart[obj].call(this, obj); // easing functions
     } else {
-      for (let prop in onStart[obj]) {
-        onStart[obj][prop].call(this,prop);
-      }
+      Object.keys(onStart[obj]).forEach((prop) => {
+        onStart[obj][prop].call(this, prop);
+      });
     }
-  }
+  });
+
   // add interpolations
-  linkInterpolation.call(this)
+  linkInterpolation.call(this);
 }

src/core/remove.js

@@ -1,5 +1,6 @@
-import Tweens from '../objects/tweens.js'
+import Tweens from '../objects/tweens.js';
+
 export default (tw) => {
-  let i = Tweens.indexOf(tw)
-  i !== -1 && Tweens.splice(i, 1)
-}
+  const i = Tweens.indexOf(tw);
+  if (i !== -1) Tweens.splice(i, 1);
+};

src/core/removeAll.js

@@ -1,2 +1,3 @@
-import Tweens from '../objects/tweens.js'
-export default () => { Tweens.length = 0 }
+import Tweens from '../objects/tweens.js';
+
+export default () => { Tweens.length = 0; };

src/core/render.js

@@ -1,31 +1,28 @@
-import KUTE from '../objects/kute.js'
-import Tweens from '../objects/tweens.js'
-import globalObject from '../objects/globalObject.js'
-import Interpolate from  '../objects/interpolate.js'
-import onStart from  '../objects/onStart.js'
+import KUTE from '../objects/kute.js';
+import Tweens from '../objects/tweens.js';
+import globalObject from '../objects/globalObject.js';
+import Interpolate from '../objects/interpolate.js';
+import onStart from '../objects/onStart.js';
 
-// const Time = window.performance
+const Time = {};
+const that = window.self || window || {};
+Time.now = that.performance.now.bind(that.performance);
 
-const Time = {}
-Time.now = self.performance.now.bind(self.performance)
-// export {Time}
+let Tick = 0;
+export { Tick };
 
-let Tick = 0
-export {Tick}
-
-let Ticker = (time) => {
+const Ticker = (time) => {
   let i = 0;
-  while ( i < Tweens.length ) {
-    if ( Tweens[i].update(time) ) {
-      i++;
+  while (i < Tweens.length) {
+    if (Tweens[i].update(time)) {
+      i += 1;
     } else {
       Tweens.splice(i, 1);
     }
   }
   Tick = requestAnimationFrame(Ticker);
-}
-export {Ticker}
-
+};
+export { Ticker };
 
 // stop requesting animation frame
 export function stop() {
@@ -33,29 +30,33 @@ export function stop() {
     if (!Tweens.length && Tick) {
       cancelAnimationFrame(Tick);
       Tick = null;
-      for (let obj in onStart) {
+      Object.keys(onStart).forEach((obj) => {
         if (typeof (onStart[obj]) === 'function') {
-          KUTE[obj] && (delete KUTE[obj])
+          if (KUTE[obj]) delete KUTE[obj];
         } else {
-          for (let prop in onStart[obj]) {
-            KUTE[prop] && (delete KUTE[prop])
-          }
+          Object.keys(onStart[obj]).forEach((prop) => {
+            if (KUTE[prop]) delete KUTE[prop];
+          });
         }
-      }
-      for (let i in Interpolate) {
-        KUTE[i] && (delete KUTE[i])
-      }
+      });
+
+      Object.keys(Interpolate).forEach((i) => {
+        if (KUTE[i]) delete KUTE[i];
+      });
     }
-  },64)
+  }, 64);
 }
 
 // KUTE.js render update functions
 // ===============================
-const Render = {Tick,Ticker,Tweens,Time}
-for ( const blob in Render ) {
+const Render = {
+  Tick, Ticker, Tweens, Time,
+};
+Object.keys(Render).forEach((blob) => {
   if (!KUTE[blob]) {
     KUTE[blob] = blob === 'Time' ? Time.now : Render[blob];
   }
-}
-export default Render
-globalObject[`_KUTE`] = KUTE
+});
+
+export default Render;
+globalObject._KUTE = KUTE;

src/easing/easing-base.js

@@ -1,36 +1,45 @@
-import connect from '../objects/connect.js'
+import connect from '../objects/connect.js';
 
 // Select Robert Penner's Easing Functions
+// updated for ESLint
 const Easing = {
-  linear : (t) => t,
-  easingQuadraticIn : (t) => t*t,
-  easingQuadraticOut : (t) => t*(2-t),
-  easingQuadraticInOut : (t) => t<.5 ? 2*t*t : -1+(4-2*t)*t,
-  easingCubicIn : (t) => t*t*t,
-  easingCubicOut : (t) => (--t)*t*t+1,
-  easingCubicInOut : (t) => t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1,
-  easingCircularIn : (t) => -(Math.sqrt(1 - (t * t)) - 1),
-  easingCircularOut : (t) => Math.sqrt(1 - (t = t - 1) * t),
-  easingCircularInOut : (t) => ((t*=2) < 1) ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1),
-  easingBackIn : (t) => { const s = 1.70158; return t * t * ((s + 1) * t - s) },
-  easingBackOut : (t) => { const s = 1.70158; return --t * t * ((s + 1) * t + s) + 1 },
-  easingBackInOut : (t) => { 
+  linear: (t) => t,
+  easingQuadraticIn: (t) => t * t,
+  easingQuadraticOut: (t) => t * (2 - t),
+  easingQuadraticInOut: (t) => (t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t),
+  easingCubicIn: (t) => t * t * t,
+  easingCubicOut: (t0) => { const t = t0 - 1; return t * t * t + 1; },
+  easingCubicInOut: (t) => (t < 0.5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1),
+  easingCircularIn: (t) => -(Math.sqrt(1 - (t * t)) - 1),
+  easingCircularOut: (t0) => { const t = t0 - 1; Math.sqrt(1 - t * t); },
+  easingCircularInOut: (t0) => {
+    let t = t0 * 2;
+    if (t < 1) return -0.5 * (Math.sqrt(1 - t * t) - 1);
+    t -= 2; return 0.5 * (Math.sqrt(1 - t * t) + 1);
+  },
+  easingBackIn: (t) => { const s = 1.70158; return t * t * ((s + 1) * t - s); },
+  easingBackOut: (t0) => {
+    const s = 1.70158;
+    const t = t0 - 1;
+    return t * t * ((s + 1) * t + s) + 1;
+  },
+  easingBackInOut: (t0) => {
     const s = 1.70158 * 1.525;
-    if ((t *= 2) < 1) return 0.5 * (t * t * ((s + 1) * t - s))
-    return 0.5 * ((t -= 2) * t * ((s + 1) * t + s) + 2)
-  }
-}
+    let t = t0 * 2;
+    if (t < 1) return 0.5 * (t * t * ((s + 1) * t - s));
+    t -= 2; return 0.5 * (t * t * ((s + 1) * t + s) + 2);
+  },
+};
 
 function processEasing(fn) {
-  if ( typeof fn === 'function') {
+  if (typeof fn === 'function') {
     return fn;
-  } else if ( typeof Easing[fn] === 'function' ) {
+  } if (typeof Easing[fn] === 'function') {
     return Easing[fn]; // regular Robert Penner Easing Functions
-  } else {
-    return Easing.linear
   }
+  return Easing.linear;
 }
 
-connect.processEasing = processEasing
+connect.processEasing = processEasing;
 
-export default Easing
+export default Easing;

src/easing/easing-bezier.js

@@ -1,57 +1,56 @@
-import connect from '../objects/connect.js'
-import CubicBezier from 'cubic-bezier-easing'
+import CubicBezier from 'cubic-bezier-easing';
+import connect from '../objects/connect.js';
 
 const Easing = {
-  linear :  new CubicBezier(0, 0, 1, 1,'linear'),
-  easingSinusoidalIn : new CubicBezier(0.47, 0, 0.745, 0.715,'easingSinusoidalIn'),
-  easingSinusoidalOut : new CubicBezier(0.39, 0.575, 0.565, 1,'easingSinusoidalOut'),
-  easingSinusoidalInOut : new CubicBezier(0.445, 0.05, 0.55, 0.95,'easingSinusoidalInOut'),
+  linear: new CubicBezier(0, 0, 1, 1, 'linear'),
+  easingSinusoidalIn: new CubicBezier(0.47, 0, 0.745, 0.715, 'easingSinusoidalIn'),
+  easingSinusoidalOut: new CubicBezier(0.39, 0.575, 0.565, 1, 'easingSinusoidalOut'),
+  easingSinusoidalInOut: new CubicBezier(0.445, 0.05, 0.55, 0.95, 'easingSinusoidalInOut'),
 
-  easingQuadraticIn : new CubicBezier(0.550, 0.085, 0.680, 0.530,'easingQuadraticIn'),
-  easingQuadraticOut : new CubicBezier(0.250, 0.460, 0.450, 0.940,'easingQuadraticOut'),
-  easingQuadraticInOut : new CubicBezier(0.455, 0.030, 0.515, 0.955,'easingQuadraticInOut'),
+  easingQuadraticIn: new CubicBezier(0.550, 0.085, 0.680, 0.530, 'easingQuadraticIn'),
+  easingQuadraticOut: new CubicBezier(0.250, 0.460, 0.450, 0.940, 'easingQuadraticOut'),
+  easingQuadraticInOut: new CubicBezier(0.455, 0.030, 0.515, 0.955, 'easingQuadraticInOut'),
 
-  easingCubicIn : new CubicBezier(0.55, 0.055, 0.675, 0.19,'easingCubicIn'),
-  easingCubicOut : new CubicBezier(0.215, 0.61, 0.355, 1,'easingCubicOut'),
-  easingCubicInOut : new CubicBezier(0.645, 0.045, 0.355, 1,'easingCubicInOut'),
+  easingCubicIn: new CubicBezier(0.55, 0.055, 0.675, 0.19, 'easingCubicIn'),
+  easingCubicOut: new CubicBezier(0.215, 0.61, 0.355, 1, 'easingCubicOut'),
+  easingCubicInOut: new CubicBezier(0.645, 0.045, 0.355, 1, 'easingCubicInOut'),
 
-  easingQuarticIn : new CubicBezier(0.895, 0.03, 0.685, 0.22,'easingQuarticIn'),
-  easingQuarticOut : new CubicBezier(0.165, 0.84, 0.44, 1,'easingQuarticOut'),
-  easingQuarticInOut : new CubicBezier(0.77, 0, 0.175, 1,'easingQuarticInOut'),
+  easingQuarticIn: new CubicBezier(0.895, 0.03, 0.685, 0.22, 'easingQuarticIn'),
+  easingQuarticOut: new CubicBezier(0.165, 0.84, 0.44, 1, 'easingQuarticOut'),
+  easingQuarticInOut: new CubicBezier(0.77, 0, 0.175, 1, 'easingQuarticInOut'),
 
-  easingQuinticIn : new CubicBezier(0.755, 0.05, 0.855, 0.06,'easingQuinticIn'),
-  easingQuinticOut : new CubicBezier(0.23, 1, 0.32, 1,'easingQuinticOut'),
-  easingQuinticInOut : new CubicBezier(0.86, 0, 0.07, 1,'easingQuinticInOut'),
+  easingQuinticIn: new CubicBezier(0.755, 0.05, 0.855, 0.06, 'easingQuinticIn'),
+  easingQuinticOut: new CubicBezier(0.23, 1, 0.32, 1, 'easingQuinticOut'),
+  easingQuinticInOut: new CubicBezier(0.86, 0, 0.07, 1, 'easingQuinticInOut'),
 
-  easingExponentialIn : new CubicBezier(0.95, 0.05, 0.795, 0.035,'easingExponentialIn'),
-  easingExponentialOut : new CubicBezier(0.19, 1, 0.22, 1,'easingExponentialOut'),
-  easingExponentialInOut : new CubicBezier(1, 0, 0, 1,'easingExponentialInOut'),
+  easingExponentialIn: new CubicBezier(0.95, 0.05, 0.795, 0.035, 'easingExponentialIn'),
+  easingExponentialOut: new CubicBezier(0.19, 1, 0.22, 1, 'easingExponentialOut'),
+  easingExponentialInOut: new CubicBezier(1, 0, 0, 1, 'easingExponentialInOut'),
 
-  easingCircularIn : new CubicBezier(0.6, 0.04, 0.98, 0.335,'easingCircularIn'),
-  easingCircularOut : new CubicBezier(0.075, 0.82, 0.165, 1,'easingCircularOut'),
-  easingCircularInOut : new CubicBezier(0.785, 0.135, 0.15, 0.86,'easingCircularInOut'),
+  easingCircularIn: new CubicBezier(0.6, 0.04, 0.98, 0.335, 'easingCircularIn'),
+  easingCircularOut: new CubicBezier(0.075, 0.82, 0.165, 1, 'easingCircularOut'),
+  easingCircularInOut: new CubicBezier(0.785, 0.135, 0.15, 0.86, 'easingCircularInOut'),
 
-  easingBackIn : new CubicBezier(0.6, -0.28, 0.735, 0.045,'easingBackIn'),
-  easingBackOut : new CubicBezier(0.175, 0.885, 0.32, 1.275,'easingBackOut'),
-  easingBackInOut : new CubicBezier(0.68, -0.55, 0.265, 1.55,'easingBackInOut')
-}
+  easingBackIn: new CubicBezier(0.6, -0.28, 0.735, 0.045, 'easingBackIn'),
+  easingBackOut: new CubicBezier(0.175, 0.885, 0.32, 1.275, 'easingBackOut'),
+  easingBackInOut: new CubicBezier(0.68, -0.55, 0.265, 1.55, 'easingBackInOut'),
+};
 
 function processBezierEasing(fn) {
-  if ( typeof fn === 'function') {
+  if (typeof fn === 'function') {
     return fn;
-  } else if (typeof(Easing[fn]) === 'function') {
+  } if (typeof (Easing[fn]) === 'function') {
     return Easing[fn];
-  } else if ( /bezier/.test(fn) ) {
-    var bz = fn.replace(/bezier|\s|\(|\)/g,'').split(',');
-    return new CubicBezier( bz[0]*1,bz[1]*1,bz[2]*1,bz[3]*1 ); //bezier easing 
-  } else {
-    if ( /elastic|bounce/i.test(fn) ) {
-      console.warn(`KUTE.js - CubicBezier doesn't support ${fn} easing.`)
-    }
-    return Easing.linear
+  } if (/bezier/.test(fn)) {
+    const bz = fn.replace(/bezier|\s|\(|\)/g, '').split(',');
+    return new CubicBezier(bz[0] * 1, bz[1] * 1, bz[2] * 1, bz[3] * 1); // bezier easing
   }
+  // if (/elastic|bounce/i.test(fn)) {
+  //   throw TypeError(`KUTE.js - CubicBezier doesn't support ${fn} easing.`);
+  // }
+  return Easing.linear;
 }
 
-connect.processEasing = processBezierEasing
+connect.processEasing = processBezierEasing;
 
-export default Easing
+export default Easing;

src/easing/easing.js

@@ -1,79 +1,132 @@
-import connect from '../objects/connect.js'
+import connect from '../objects/connect.js';
 
 // Robert Penner's Easing Functions
+// updated for ESLint
 const Easing = {
-  linear : (t) => t,
-  easingSinusoidalIn : (t) => -Math.cos(t * Math.PI / 2) + 1,
-  easingSinusoidalOut : (t) => Math.sin(t * Math.PI / 2),
-  easingSinusoidalInOut : (t) => -0.5 * (Math.cos(Math.PI * t) - 1),
-  easingQuadraticIn : (t) => t*t,
-  easingQuadraticOut : (t) => t*(2-t),
-  easingQuadraticInOut : (t) => t<.5 ? 2*t*t : -1+(4-2*t)*t,
-  easingCubicIn : (t) => t*t*t,
-  easingCubicOut : (t) => (--t)*t*t+1,
-  easingCubicInOut : (t) => t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1,
-  easingQuarticIn : (t) => t*t*t*t,
-  easingQuarticOut : (t) => 1-(--t)*t*t*t,
-  easingQuarticInOut : (t) => t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t,
-  easingQuinticIn : (t) => t*t*t*t*t,
-  easingQuinticOut : (t) => 1+(--t)*t*t*t*t,
-  easingQuinticInOut : (t) => t<.5 ? 16*t*t*t*t*t : 1+16*(--t)*t*t*t*t,
-  easingCircularIn : (t) => -(Math.sqrt(1 - (t * t)) - 1),
-  easingCircularOut : (t) => Math.sqrt(1 - (t = t - 1) * t),
-  easingCircularInOut : (t) => ((t*=2) < 1) ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1),
-  easingExponentialIn : (t) => 2 ** (10 * (t - 1)) - 0.001,
-  easingExponentialOut : (t) => 1 - 2 ** (-10 * t),
-  easingExponentialInOut : (t) => (t *= 2) < 1 ? 0.5 * (2 ** (10 * (t - 1))) : 0.5 * (2 - 2 ** (-10 * (t - 1))),
-  easingBackIn : (t) => { const s = 1.70158; return t * t * ((s + 1) * t - s) },
-  easingBackOut : (t) => { const s = 1.70158; return --t * t * ((s + 1) * t + s) + 1 },
-  easingBackInOut : (t) => { 
+  linear: (t) => t,
+  easingSinusoidalIn: (t) => -Math.cos((t * Math.PI) / 2) + 1,
+  easingSinusoidalOut: (t) => Math.sin((t * Math.PI) / 2),
+  easingSinusoidalInOut: (t) => -0.5 * (Math.cos(Math.PI * t) - 1),
+  easingQuadraticIn: (t) => t * t,
+  easingQuadraticOut: (t) => t * (2 - t),
+  easingQuadraticInOut: (t) => (t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t),
+  easingCubicIn: (t) => t * t * t,
+  easingCubicOut: (t0) => { const t = t0 - 1; return t * t * t + 1; },
+  easingCubicInOut: (t) => (t < 0.5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1),
+  easingQuarticIn: (t) => t * t * t * t,
+  easingQuarticOut: (t0) => { const t = t0 - 1; return 1 - t * t * t * t; },
+  easingQuarticInOut: (t0) => {
+    let t = t0;
+    if (t < 0.5) return 8 * t * t * t * t;
+    t -= 1; return 1 - 8 * t * t * t * t;
+  },
+  easingQuinticIn: (t) => t * t * t * t * t,
+  easingQuinticOut: (t0) => { const t = t0 - 1; return 1 + t * t * t * t * t; },
+  easingQuinticInOut: (t0) => {
+    let t = t0;
+    if (t < 0.5) return 16 * t * t * t * t * t;
+    t -= 1; return 1 + 16 * t * t * t * t * t;
+  },
+  easingCircularIn: (t) => -(Math.sqrt(1 - (t * t)) - 1),
+  easingCircularOut: (t0) => { const t = t0 - 1; return Math.sqrt(1 - t * t); },
+  easingCircularInOut: (t0) => {
+    let t = t0 * 2;
+    if (t < 1) return -0.5 * (Math.sqrt(1 - t * t) - 1);
+    t -= 2; return 0.5 * (Math.sqrt(1 - t * t) + 1);
+  },
+  easingExponentialIn: (t) => 2 ** (10 * (t - 1)) - 0.001,
+  easingExponentialOut: (t) => 1 - 2 ** (-10 * t),
+  easingExponentialInOut: (t0) => {
+    const t = t0 * 2;
+    if (t < 1) return 0.5 * (2 ** (10 * (t - 1)));
+    return 0.5 * (2 - 2 ** (-10 * (t - 1)));
+  },
+  easingBackIn: (t) => { const s = 1.70158; return t * t * ((s + 1) * t - s); },
+  easingBackOut: (t0) => {
+    const s = 1.70158;
+    const t = t0 - 1;
+    return t * t * ((s + 1) * t + s) + 1;
+  },
+  easingBackInOut: (t0) => {
     const s = 1.70158 * 1.525;
-    if ((t *= 2) < 1) return 0.5 * (t * t * ((s + 1) * t - s))
-    return 0.5 * ((t -= 2) * t * ((s + 1) * t + s) + 2)
+    let t = t0 * 2;
+    if (t < 1) return 0.5 * (t * t * ((s + 1) * t - s));
+    t -= 2; return 0.5 * (t * t * ((s + 1) * t + s) + 2);
   },
-  easingElasticIn : (t) => {
-    let s, _kea = 0.1, _kep = 0.4
-    if ( t === 0 ) return 0;if ( t === 1 ) return 1
-    if ( !_kea || _kea < 1 ) { _kea = 1; s = _kep / 4; } else s = _kep * Math.asin( 1 / _kea ) / Math.PI * 2
-    return - ( _kea * (2 ** (10 * (t -= 1))) * Math.sin( ( t - s ) * Math.PI * 2 / _kep ) )
+  easingElasticIn: (t0) => {
+    let s;
+    let k1 = 0.1;
+    const k2 = 0.4;
+    let t = t0;
+    if (t === 0) return 0;
+    if (t === 1) return 1;
+    if (!k1 || k1 < 1) {
+      k1 = 1; s = k2 / 4;
+    } else {
+      s = ((k2 * Math.asin(1 / k1)) / Math.PI) * 2;
+    }
+    t -= 1;
+    return -(k1 * (2 ** (10 * t)) * Math.sin(((t - s) * Math.PI * 2) / k2));
   },
-  easingElasticOut : (t) => {
-    let s, _kea = 0.1, _kep = 0.4
-    if ( t === 0 ) return 0;if ( t === 1 ) return 1
-    if ( !_kea || _kea < 1 ) { _kea = 1; s = _kep / 4; } else s = _kep * Math.asin( 1 / _kea ) / Math.PI * 2 
-    return _kea * (2 ** (- 10 * t)) * Math.sin( ( t - s ) * Math.PI * 2  / _kep ) + 1
+  easingElasticOut: (t) => {
+    let s;
+    let k1 = 0.1;
+    const k2 = 0.4;
+    if (t === 0) return 0;
+    if (t === 1) return 1;
+    if (!k1 || k1 < 1) {
+      k1 = 1;
+      s = k2 / 4;
+    } else {
+      s = ((k2 * Math.asin(1 / k1)) / Math.PI) * 2;
+    }
+    return k1 * (2 ** (-10 * t)) * Math.sin(((t - s) * Math.PI * 2) / k2) + 1;
   },
-  easingElasticInOut : (t) => {
-    let s, _kea = 0.1, _kep = 0.4
-    if ( t === 0 ) return 0;if ( t === 1 ) return 1
-    if ( !_kea || _kea < 1 ) { _kea = 1; s = _kep / 4; } else s = _kep * Math.asin( 1 / _kea ) / Math.PI * 2
-    if ( ( t *= 2 ) < 1 ) return - 0.5 * ( _kea * (2 ** (10 * (t -= 1))) * Math.sin( ( t - s ) * Math.PI * 2  / _kep ) )
-    return _kea * (2 ** (-10 * (t -= 1))) * Math.sin( ( t - s ) * Math.PI * 2  / _kep ) * 0.5 + 1
+  easingElasticInOut: (t0) => {
+    let t = t0;
+    let s;
+    let k1 = 0.1;
+    const k2 = 0.4;
+    if (t === 0) return 0;
+    if (t === 1) return 1;
+    if (!k1 || k1 < 1) {
+      k1 = 1; s = k2 / 4;
+    } else {
+      s = k2 * (Math.asin(1 / k1) / Math.PI) * 2;
+    }
+    t *= 2;
+    if (t < 1) {
+      return -0.5 * (k1 * (2 ** (10 * (t - 1)))
+        * Math.sin(((t - 1 - s) * Math.PI * 2) / k2));
+    }
+    t -= 1;
+    return k1 * (2 ** (-10 * t)) * Math.sin(((t - s) * Math.PI * 2) / k2) * 0.5 + 1;
   },
-  easingBounceIn : (t) => { return 1 - Easing.easingBounceOut( 1 - t ) },
-  easingBounceOut : (t) => {
-    if ( t < ( 1 / 2.75 ) ) { return 7.5625 * t * t; }
-    else if ( t < ( 2 / 2.75 ) ) { return 7.5625 * ( t -= ( 1.5 / 2.75 ) ) * t + 0.75; }
-    else if ( t < ( 2.5 / 2.75 ) ) { return 7.5625 * ( t -= ( 2.25 / 2.75 ) ) * t + 0.9375; }
-    else {return 7.5625 * ( t -= ( 2.625 / 2.75 ) ) * t + 0.984375; }
+  easingBounceIn: (t) => 1 - Easing.easingBounceOut(1 - t),
+  easingBounceOut: (t0) => {
+    let t = t0;
+    if (t < (1 / 2.75)) { return 7.5625 * t * t; }
+    if (t < (2 / 2.75)) { t -= (1.5 / 2.75); return 7.5625 * t * t + 0.75; }
+    if (t < (2.5 / 2.75)) { t -= (2.25 / 2.75); return 7.5625 * t * t + 0.9375; }
+    t -= (2.625 / 2.75);
+    return 7.5625 * t * t + 0.984375;
   },
-  easingBounceInOut : (t) => { 
-    if ( t < 0.5 ) return Easing.easingBounceIn( t * 2 ) * 0.5; 
-    return Easing.easingBounceOut( t * 2 - 1 ) * 0.5 + 0.5
-  }
-}
+  easingBounceInOut: (t) => {
+    if (t < 0.5) return Easing.easingBounceIn(t * 2) * 0.5;
+    return Easing.easingBounceOut(t * 2 - 1) * 0.5 + 0.5;
+  },
+};
 
 function processEasing(fn) {
-  if ( typeof fn === 'function') {
+  if (typeof fn === 'function') {
     return fn;
-  } else if ( typeof Easing[fn] === 'function' ) {
+  } if (typeof Easing[fn] === 'function') {
     return Easing[fn]; // regular Robert Penner Easing Functions
-  } else {
-    return Easing.linear
   }
+  return Easing.linear;
 }
 
 // Tween constructor needs to know who will process easing functions
-connect.processEasing = processEasing
+connect.processEasing = processEasing;
 
-export default Easing
+export default Easing;

src/index-base.js

@@ -1,29 +1,29 @@
-import {version as Version} from './../package.json'
-import Render from './core/render.js'
-import Interpolate from './objects/interpolate.js'
-import Objects from './objects/objectsBase.js'
-import Util from './objects/util.js'
-import Easing from './easing/easing-base.js'
-import Internals from './core/internals.js'
-import Selector from './util/selector.js'
+import { version as Version } from '../package.json';
+import Render from './core/render.js';
+import Interpolate from './objects/interpolate.js';
+import Objects from './objects/objectsBase.js';
+import Util from './objects/util.js';
+import Easing from './easing/easing-base.js';
+import Internals from './core/internals.js';
+import Selector from './util/selector.js';
 
-import Animation from './animation/animationBase.js'
+import Animation from './animation/animationBase.js';
 
 // TweenConstructor
-import Tween from './tween/tweenBase.js'
+import Tween from './tween/tweenBase.js';
 // Interface only fromTo
-import fromTo from './interface/fromTo.js'
+import fromTo from './interface/fromTo.js';
 
 // import baseTransform from './components/transformFunctionsBase.js'
-import baseTransformMatrix from './components/transformMatrixBase.js'
-import baseBoxModel from './components/boxModelBase.js'
-import baseOpacity from './components/opacityPropertyBase.js'
+import baseTransformMatrix from './components/transformMatrixBase.js';
+import baseBoxModel from './components/boxModelBase.js';
+import baseOpacity from './components/opacityPropertyBase.js';
 // import {baseCrossBrowserMove} from './components/crossBrowserMove.js'
 
 // const Transform = new Animation(baseTransform)
-const Transform = new Animation(baseTransformMatrix)
-const BoxModel = new Animation(baseBoxModel)
-const Opacity = new Animation(baseOpacity)
+const Transform = new Animation(baseTransformMatrix);
+const BoxModel = new Animation(baseBoxModel);
+const Opacity = new Animation(baseOpacity);
 // const Move = new Animation(baseCrossBrowserMove)
 // support for kute-base.js ends here
 
@@ -46,5 +46,5 @@ export default {
   Interpolate,
   Internals,
   Selector,
-  Version
-}
+  Version,
+};

src/index-extra.js

@@ -1,49 +1,67 @@
-import {version as Version} from './../package.json'
-import Render from './core/render.js'
-import Interpolate from './objects/interpolate.js'
-import Objects from './objects/objects.js'
-import Util from './objects/util.js'
-import Components from './objects/components.js'
-import Internals from './core/internals.js'
-import Process from './process/process.js'
-import CubicBezier from 'cubic-bezier-easing'
-import Easing from './easing/easing-bezier.js'
-import Selector from './util/selector.js'
+import CubicBezier from 'cubic-bezier-easing';
+import { version as Version } from '../package.json';
+import Render from './core/render.js';
+import Interpolate from './objects/interpolate.js';
+import Objects from './objects/objects.js';
+import Util from './objects/util.js';
+import Internals from './core/internals.js';
+import Process from './process/process.js';
+import Easing from './easing/easing-bezier.js';
+import Selector from './util/selector.js';
 
 // TweenConstructor
-import Tween from './tween/tweenExtra.js'
-import TweenCollection from './tween/tweenCollection.js'
-import ProgressBar from './util/progressBar.js'
+import Tween from './tween/tweenExtra.js';
+import TweenCollection from './tween/tweenCollection.js';
+import ProgressBar from './util/progressBar.js';
 // interface
-import to from './interface/to.js'
-import fromTo from './interface/fromTo.js'
-import allTo from './interface/allTo.js'
-import allFromTo from './interface/allFromTo.js'
+import to from './interface/to.js';
+import fromTo from './interface/fromTo.js';
+import allTo from './interface/allTo.js';
+import allFromTo from './interface/allFromTo.js';
 
-import Animation from './animation/animationDevelopment.js'
+import Animation from './animation/animationDevelopment.js';
 
 // components
-import BackgroundPosition from './components/backgroundPosition.js'
-import BorderRadius from './components/borderRadius.js'
-import BoxModel from './components/boxModel.js'
-import ClipProperty from './components/clipProperty.js'
-import ColorProperties from './components/colorProperties.js'
-import FilterEffects from './components/filterEffects'
-import HTMLAttributes from './components/htmlAttributes.js'
-import OpacityProperty from './components/opacityProperty.js'
-import SVGDraw from './components/svgDraw.js'
-import SVGCubicMorph from './components/svgCubicMorph.js'
-import SVGTransform from './components/svgTransform.js'
-import ScrollProperty from './components/scrollProperty.js'
-import ShadowProperties from './components/shadowProperties.js'
-import TextProperties from './components/textProperties.js'
-import TextWriteProperties from './components/textWrite.js'
-import MatrixTransform from './components/transformMatrix.js'
+import BackgroundPosition from './components/backgroundPosition.js';
+import BorderRadius from './components/borderRadius.js';
+import BoxModel from './components/boxModel.js';
+import ClipProperty from './components/clipProperty.js';
+import ColorProperties from './components/colorProperties.js';
+import FilterEffects from './components/filterEffects';
+import HTMLAttributes from './components/htmlAttributes.js';
+import OpacityProperty from './components/opacityProperty.js';
+import SVGDraw from './components/svgDraw.js';
+import SVGCubicMorph from './components/svgCubicMorph.js';
+import SVGTransform from './components/svgTransform.js';
+import ScrollProperty from './components/scrollProperty.js';
+import ShadowProperties from './components/shadowProperties.js';
+import TextProperties from './components/textProperties.js';
+import TextWriteProperties from './components/textWrite.js';
+import MatrixTransform from './components/transformMatrix.js';
 
-for (let component in Components) {
-  let compOps = Components[component]
-  Components[component] = new Animation(compOps)
-}
+const Components = {
+  BackgroundPosition,
+  BorderRadius,
+  BoxModel,
+  ClipProperty,
+  ColorProperties,
+  FilterEffects,
+  HTMLAttributes,
+  OpacityProperty,
+  SVGDraw,
+  SVGCubicMorph,
+  SVGTransform,
+  ScrollProperty,
+  ShadowProperties,
+  TextProperties,
+  TextWriteProperties,
+  MatrixTransform,
+};
+
+Object.keys(Components).forEach((component) => {
+  const compOps = Components[component];
+  Components[component] = new Animation(compOps);
+});
 
 export default {
   Animation,
@@ -69,5 +87,5 @@ export default {
   Process,
   Internals,
   Selector,
-  Version
-}
+  Version,
+};

src/index-legacy.js

@@ -0,0 +1,71 @@
+import { version as Version } from '../package.json';
+import Render from './core/render.js';
+import Interpolate from './objects/interpolate.js';
+import Objects from './objects/objects.js';
+import Util from './objects/util.js';
+import Internals from './core/internals.js';
+import Process from './process/process.js';
+import Easing from './easing/easing.js';
+import Selector from './util/selector.js';
+
+// TweenConstructor
+import Tween from './tween/tween.js';
+import TweenCollection from './tween/tweenCollection.js';
+// interface
+import to from './interface/to.js';
+import fromTo from './interface/fromTo.js';
+import allTo from './interface/allTo.js';
+import allFromTo from './interface/allFromTo.js';
+import Animation from './animation/animation.js';
+
+// components
+import BoxModel from './components/boxModelEssential.js';
+import ColorProperties from './components/colorProperties.js';
+import HTMLAttributes from './components/htmlAttributes.js';
+import OpacityProperty from './components/opacityProperty.js';
+import TextWrite from './components/textWrite.js';
+import TransformLegacy from './components/transformLegacy.js';
+import SVGDraw from './components/svgDraw.js';
+import SVGMorph from './components/svgMorph.js';
+
+const Components = {
+  BoxModel,
+  ColorProperties,
+  HTMLAttributes,
+  OpacityProperty,
+  TextWrite,
+  TransformLegacy,
+  SVGDraw,
+  SVGMorph,
+};
+
+// init components
+Object.keys(Components).forEach((component) => {
+  const compOps = Components[component];
+  Components[component] = new Animation(compOps);
+});
+
+export default {
+  Animation,
+  Components,
+
+  // Tween Interface
+  Tween,
+  fromTo,
+  to,
+  // Tween Collection
+  TweenCollection,
+  allFromTo,
+  allTo,
+  // Tween Interface
+
+  Objects,
+  Util,
+  Easing,
+  Render,
+  Interpolate,
+  Process,
+  Internals,
+  Selector,
+  Version,
+};

src/index.js

@@ -1,52 +1,51 @@
-import {version as Version} from './../package.json'
-import Render from './core/render.js'
-import Interpolate from './objects/interpolate.js'
-import Objects from './objects/objects.js'
-import Util from './objects/util.js'
-import Components from './objects/components.js'
-import Internals from './core/internals.js'
-import Process from './process/process.js'
-import CubicBezier from 'cubic-bezier-easing'
-import Easing from './easing/easing-bezier.js'
-import Selector from './util/selector.js'
+import CubicBezier from 'cubic-bezier-easing';
+import { version as Version } from '../package.json';
+import Render from './core/render.js';
+import Interpolate from './objects/interpolate.js';
+import Objects from './objects/objects.js';
+import Util from './objects/util.js';
+import Internals from './core/internals.js';
+import Process from './process/process.js';
+import Easing from './easing/easing-bezier.js';
+import Selector from './util/selector.js';
 
 // TweenConstructor
-import Tween from './tween/tween.js'
-import TweenCollection from './tween/tweenCollection.js'
+import Tween from './tween/tween.js';
+import TweenCollection from './tween/tweenCollection.js';
 // interface
-import to from './interface/to.js'
-import fromTo from './interface/fromTo.js'
-import allTo from './interface/allTo.js'
-import allFromTo from './interface/allFromTo.js'
+import to from './interface/to.js';
+import fromTo from './interface/fromTo.js';
+import allTo from './interface/allTo.js';
+import allFromTo from './interface/allFromTo.js';
 
-// import {default as Animation} from './animation/animationDevelopment.js'
-import Animation from './animation/animation.js'
+import Animation from './animation/animation.js';
 
 // components
-// import EssentialBoxModel from './components/boxModelEssential.js'
-// import ColorsProperties from './components/colorProperties.js'
-// import HTMLAttributes from './components/htmlAttributes.js'
-// import OpacityProperty from './components/opacityProperty.js'
-// import TextWrite from './components/textWrite.js'
-// import TransformFunctions from './components/transformFunctions.js'
-// // import TransformFunctions from './components/transformLegacy.js'
-// import SVGDraw from './components/svgDraw.js'
-// import SVGMorph from './components/svgMorph.js'
-import './components/boxModelEssential.js'
-import './components/colorProperties.js'
-import './components/htmlAttributes.js'
-import './components/opacityProperty.js'
-import './components/textWrite.js'
-import './components/transformFunctions.js'
-// import './components/transformLegacy.js'
-import './components/svgDraw.js'
-import './components/svgMorph.js'
+import EssentialBoxModel from './components/boxModelEssential.js';
+import ColorsProperties from './components/colorProperties.js';
+import HTMLAttributes from './components/htmlAttributes.js';
+import OpacityProperty from './components/opacityProperty.js';
+import TextWrite from './components/textWrite.js';
+import TransformFunctions from './components/transformFunctions.js';
+import SVGDraw from './components/svgDraw.js';
+import SVGMorph from './components/svgMorph.js';
+
+const Components = {
+  EssentialBoxModel,
+  ColorsProperties,
+  HTMLAttributes,
+  OpacityProperty,
+  TextWrite,
+  TransformFunctions,
+  SVGDraw,
+  SVGMorph,
+};
 
 // init components
-for (let component in Components) {
-  let compOps = Components[component]
-  Components[component] = new Animation(compOps)
-}
+Object.keys(Components).forEach((component) => {
+  const compOps = Components[component];
+  Components[component] = new Animation(compOps);
+});
 
 export default {
   Animation,
@@ -71,5 +70,5 @@ export default {
   Process,
   Internals,
   Selector,
-  Version
-}
+  Version,
+};

src/interface/allFromTo.js

@@ -1,7 +1,7 @@
-import selector from '../util/selector.js'
-import TweenCollection from '../tween/tweenCollection.js'
+import selector from '../util/selector.js';
+import TweenCollection from '../tween/tweenCollection.js';
 
 export default function allFromTo(elements, startObject, endObject, optionsObj) {
-  optionsObj = optionsObj || {}
-  return new TweenCollection(selector(elements,true), startObject, endObject, optionsObj)
+  const options = optionsObj || {};
+  return new TweenCollection(selector(elements, true), startObject, endObject, options);
 }

src/interface/allTo.js

@@ -1,9 +1,9 @@
-import selector from '../util/selector.js'
-import TweenCollection from '../tween/tweenCollection.js'
+import selector from '../util/selector.js';
+import TweenCollection from '../tween/tweenCollection.js';
 
 // multiple elements tween objects
 export default function allTo(elements, endObject, optionsObj) {
-  optionsObj = optionsObj || {}
-  optionsObj.resetStart = endObject
-  return new TweenCollection(selector(elements,true), endObject, endObject, optionsObj)
+  const options = optionsObj || {};
+  optionsObj.resetStart = endObject;
+  return new TweenCollection(selector(elements, true), endObject, endObject, options);
 }

src/interface/fromTo.js

@@ -1,7 +1,8 @@
-import selector from '../util/selector.js'
-import connect from '../objects/connect.js'
+import selector from '../util/selector.js';
+import connect from '../objects/connect.js';
 
 export default function fromTo(element, startObject, endObject, optionsObj) {
-  optionsObj = optionsObj || {}
-  return new connect.tween(selector(element), startObject, endObject, optionsObj)
+  const options = optionsObj || {};
+  const TweenConstructor = connect.tween;
+  return new TweenConstructor(selector(element), startObject, endObject, options);
 }

src/interface/to.js

@@ -1,8 +1,9 @@
-import selector from '../util/selector.js'
-import connect from '../objects/connect.js'
+import selector from '../util/selector.js';
+import connect from '../objects/connect.js';
 
 export default function to(element, endObject, optionsObj) {
-  optionsObj = optionsObj || {}
-  optionsObj.resetStart = endObject
-  return new connect.tween(selector(element), endObject, endObject, optionsObj)
+  const options = optionsObj || {};
+  const TweenConstructor = connect.tween;
+  options.resetStart = endObject;
+  return new TweenConstructor(selector(element), endObject, endObject, options);
 }

src/interpolation/arrays.js

@@ -1,7 +1,7 @@
-export default function(a,b,v){
-  const result = []
-  for ( let i=0, l=b.length; i<l; i++ ) {
-    result[i] = ((a[i] + (b[i] - a[i]) * v) * 1000 >> 0 ) / 1000
+export default function arrays(a, b, v) {
+  const result = [];
+  for (let i = 0, l = b.length; i < l; i += 1) {
+    result[i] = ((a[i] + (b[i] - a[i]) * v) * 1000 >> 0) / 1000;
   }
-  return result
+  return result;
 }

src/interpolation/colors.js

@@ -1,13 +1,23 @@
-import numbers from './numbers.js'
+import numbers from './numbers.js';
 
-export default function(a, b, v) {
-  let _c = {},
-      c,
-      ep = ')',
-      cm =',',
-      rgb = 'rgb(',
-      rgba = 'rgba(';
+export default function colors(a, b, v) {
+  const _c = {};
+  const ep = ')';
+  const cm = ',';
+  const rgb = 'rgb(';
+  const rgba = 'rgba(';
 
-  for (c in b) { _c[c] = c !== 'a' ? (numbers(a[c],b[c],v)>>0 || 0) : (a[c] && b[c]) ? (numbers(a[c],b[c],v) * 100 >> 0 )/100 : null; }
-  return !_c.a ? rgb + _c.r + cm + _c.g + cm + _c.b + ep : rgba + _c.r + cm + _c.g + cm + _c.b + cm + _c.a + ep;
+  Object.keys(b).forEach((c) => {
+    // _c[c] = c !== 'a' ? (numbers(a[c], b[c], v) >> 0 || 0) : (a[c] && b[c])
+    // ? (numbers(a[c], b[c], v) * 100 >> 0) / 100 : null;
+    if (c !== 'a') {
+      _c[c] = numbers(a[c], b[c], v) >> 0 || 0;
+    } else if (a[c] && b[c]) {
+      _c[c] = (numbers(a[c], b[c], v) * 100 >> 0) / 100;
+    }
+  });
+
+  return !_c.a
+    ? rgb + _c.r + cm + _c.g + cm + _c.b + ep
+    : rgba + _c.r + cm + _c.g + cm + _c.b + cm + _c.a + ep;
 }

src/interpolation/coords.js

@@ -1,9 +1,9 @@
-export default function(a, b, l, v) {
+export default function coords(a, b, l, v) {
   const points = [];
-  for(let i=0;i<l;i++) { // for each point
+  for (let i = 0; i < l; i += 1) { // for each point
     points[i] = [];
-    for(let j=0;j<2;j++) { // each point coordinate
-      points[i].push( ((a[i][j]+(b[i][j]-a[i][j])*v) * 1000 >> 0)/1000 );
+    for (let j = 0; j < 2; j += 1) { // each point coordinate
+      points[i].push(((a[i][j] + (b[i][j] - a[i][j]) * v) * 1000 >> 0) / 1000);
     }
   }
   return points;

src/interpolation/numbers.js

@@ -1,3 +1,6 @@
-export default function(a, b, v) { // number1, number2, progress
-  a = +a; b -= a; return a + b * v;
+export default function numbers(a, b, v) { // number1, number2, progress
+  const A = +a;
+  const B = b - a;
+  // a = +a; b -= a;
+  return A + B * v;
 }

src/interpolation/perspective.js

@@ -1,3 +1,3 @@
-export default function(a, b, u, v) {
-  return `perspective(${((a + (b - a) * v) * 1000 >> 0 ) / 1000}${u})`
+export default function perspective(a, b, u, v) {
+  return `perspective(${((a + (b - a) * v) * 1000 >> 0) / 1000}${u})`;
 }

src/interpolation/rotate.js

@@ -1,3 +1,3 @@
-export default function(a, b, u, v) {
-  return `rotate(${((a + (b - a) * v) * 1000 >> 0 ) / 1000}${u})`
+export default function rotate(a, b, u, v) {
+  return `rotate(${((a + (b - a) * v) * 1000 >> 0) / 1000}${u})`;
 }

src/interpolation/rotate3d.js

@@ -1,7 +1,7 @@
-export default function(a, b, u, v) {
-  let rotateStr = ''
-  rotateStr += a[0]||b[0] ? `rotateX(${((a[0] + (b[0] - a[0]) * v) * 1000 >> 0 ) / 1000}${u})` : ''
-  rotateStr += a[1]||b[1] ? `rotateY(${((a[1] + (b[1] - a[1]) * v) * 1000 >> 0 ) / 1000}${u})` : ''
-  rotateStr += a[2]||b[2] ? `rotateZ(${((a[2] + (b[2] - a[2]) * v) * 1000 >> 0 ) / 1000}${u})` : ''
-  return rotateStr
+export default function rotate3d(a, b, u, v) {
+  let rotateStr = '';
+  rotateStr += a[0] || b[0] ? `rotateX(${((a[0] + (b[0] - a[0]) * v) * 1000 >> 0) / 1000}${u})` : '';
+  rotateStr += a[1] || b[1] ? `rotateY(${((a[1] + (b[1] - a[1]) * v) * 1000 >> 0) / 1000}${u})` : '';
+  rotateStr += a[2] || b[2] ? `rotateZ(${((a[2] + (b[2] - a[2]) * v) * 1000 >> 0) / 1000}${u})` : '';
+  return rotateStr;
 }

src/interpolation/scale.js

@@ -1,3 +1,3 @@
-export default function(a, b, v) {
-  return `scale(${((a + (b - a) * v) * 1000 >> 0 ) / 1000})`;
+export default function scale(a, b, v) {
+  return `scale(${((a + (b - a) * v) * 1000 >> 0) / 1000})`;
 }

src/interpolation/skew.js

@@ -1,6 +1,6 @@
-export default function(a, b, u, v) {
-  let skewArray = []; 
-  skewArray[0] = ( a[0]===b[0] ? b[0] : ( (a[0] + ( b[0] - a[0] ) * v ) * 1000 >> 0 ) / 1000 ) + u
-  skewArray[1] = a[1]||b[1] ? (( a[1]===b[1] ? b[1] : ( (a[1] + ( b[1] - a[1] ) * v ) * 1000 >> 0 ) / 1000 ) + u) : '0' 
+export default function skew(a, b, u, v) {
+  const skewArray = [];
+  skewArray[0] = (a[0] === b[0] ? b[0] : ((a[0] + (b[0] - a[0]) * v) * 1000 >> 0) / 1000) + u;
+  skewArray[1] = a[1] || b[1] ? ((a[1] === b[1] ? b[1] : ((a[1] + (b[1] - a[1]) * v) * 1000 >> 0) / 1000) + u) : '0';
   return `skew(${skewArray.join(',')})`;
 }

src/interpolation/skewX.js

@@ -1,3 +1,3 @@
-export default function(a, b, u, v) {
-  return `skewX(${((a + (b - a) * v) * 1000 >> 0 ) / 1000}${u})`
+export default function skewX(a, b, u, v) {
+  return `skewX(${((a + (b - a) * v) * 1000 >> 0) / 1000}${u})`;
 }

src/interpolation/skewY.js

@@ -1,3 +1,3 @@
-export default function(a, b, u, v) {
-  return `skewY(${((a + (b - a) * v) * 1000 >> 0 ) / 1000}${u})`
+export default function skewY(a, b, u, v) {
+  return `skewY(${((a + (b - a) * v) * 1000 >> 0) / 1000}${u})`;
 }

src/interpolation/translate.js

@@ -1,6 +1,6 @@
-export default function(a, b, u, v) {
-  let translateArray = []; 
-  translateArray[0] = ( a[0]===b[0] ? b[0] : ( (a[0] + ( b[0] - a[0] ) * v ) * 1000 >> 0 ) / 1000 ) + u
-  translateArray[1] = a[1]||b[1] ? (( a[1]===b[1] ? b[1] : ( (a[1] + ( b[1] - a[1] ) * v ) * 1000 >> 0 ) / 1000 ) + u) : '0' 
+export default function translate(a, b, u, v) {
+  const translateArray = [];
+  translateArray[0] = (a[0] === b[0] ? b[0] : ((a[0] + (b[0] - a[0]) * v) * 1000 >> 0) / 1000) + u;
+  translateArray[1] = a[1] || b[1] ? ((a[1] === b[1] ? b[1] : ((a[1] + (b[1] - a[1]) * v) * 1000 >> 0) / 1000) + u) : '0';
   return `translate(${translateArray.join(',')})`;
 }

src/interpolation/translate3d.js

@@ -1,7 +1,8 @@
-export default function(a, b, u, v) {
-  let translateArray = [];
-  for (let ax=0; ax<3; ax++){
-    translateArray[ax] = ( a[ax]||b[ax] ? ( (a[ax] + ( b[ax] - a[ax] ) * v ) * 1000 >> 0 ) / 1000 : 0 ) + u;
+export default function translate3d(a, b, u, v) {
+  const translateArray = [];
+  for (let ax = 0; ax < 3; ax += 1) {
+    translateArray[ax] = (a[ax] || b[ax]
+      ? ((a[ax] + (b[ax] - a[ax]) * v) * 1000 >> 0) / 1000 : 0) + u;
   }
   return `translate3d(${translateArray.join(',')})`;
 }

src/interpolation/units.js

@@ -1,3 +1,6 @@
-export default function(a, b, u, v) { // number1, number2, unit, progress
-  a = +a; b -= a; return ( a + b * v ) + u;
+export default function units(a, b, u, v) { // number1, number2, unit, progress
+  const A = +a;
+  const B = b - a;
+  // a = +a; b -= a;
+  return (A + B * v) + u;
 }

src/objects/components.js

@@ -1 +0,0 @@
-export default {}

src/objects/connect.js

@@ -1 +1 @@
-export default {}
+export default {};

src/objects/crossCheck.js

@@ -2,4 +2,4 @@
 // can be set to make sure start unit and end unit are same,
 // stack transforms, process SVG paths,
 // any type of post processing the component needs
-export default {}
+export default {};