mirror of
https://github.com/koalyptus/TableFilter.git
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82 lines
1.7 KiB
JavaScript
82 lines
1.7 KiB
JavaScript
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/**
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* Types utilities
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*/
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const UNDEFINED = void 0;
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/**
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* Return an empty function
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* @return {Function}
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*/
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export const EMPTY_FN = function() {};
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/**
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* Check passed argument is an object
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* @param {Object} obj
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* @return {Boolean}
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*/
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export const isObj =
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(obj) => Object.prototype.toString.call(obj) === '[object Object]';
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/**
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* Check passed argument is a function
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* @param {Function} obj
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* @return {Boolean}
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*/
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export const isFn =
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(obj) => Object.prototype.toString.call(obj) === '[object Function]';
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/**
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* Check passed argument is an array
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* @param {Array} obj
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* @return {Boolean}
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*/
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export const isArray =
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(obj) => Object.prototype.toString.call(obj) === '[object Array]';
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/**
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* Check passed argument is a string
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* @param {String} obj obj
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* @returns {Boolean}
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*/
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export const isString =
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(obj) => Object.prototype.toString.call(obj) === '[object String]';
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/**
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* Check passed argument is a number
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* @param {Number} obj
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* @returns {Boolean}
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*/
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export const isNumber =
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(obj) => Object.prototype.toString.call(obj) === '[object Number]';
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/**
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* Check passed argument is a boolean
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* @param {Boolean} obj
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* @returns {Boolean}
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*/
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export const isBoolean =
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(obj) => Object.prototype.toString.call(obj) === '[object Boolean]';
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/**
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* Check passed argument is undefined
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* @param {Any} obj
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* @return {Boolean}
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*/
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export const isUndef = (obj) => obj === UNDEFINED;
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/**
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* Check passed argument is null
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* @param {Any} obj
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* @return {Boolean}
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*/
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export const isNull = (obj) => obj === null;
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/**
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* Check passed argument is empty (undefined, null or empty string)
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* @param {Any} obj
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* @return {Boolean}
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*/
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export const isEmpty = (obj) => isUndef(obj) || isNull(obj) || obj.length === 0;
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