32 lines
782 B
JavaScript
Executable file
32 lines
782 B
JavaScript
Executable file
'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var callBound = require('call-bind/callBound');
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var $fromCharCode = GetIntrinsic('%String.fromCharCode%');
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var $TypeError = GetIntrinsic('%TypeError%');
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var $charCodeAt = callBound('%String.prototype.charCodeAt%');
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var $push = callBound('%Array.prototype.push%');
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module.exports = function CharacterRange(A, B) {
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if (A.length !== 1 || B.length !== 1) {
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throw new $TypeError('Assertion failed: CharSets A and B contain exactly one character');
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}
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var a = A[0];
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var b = B[0];
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var i = $charCodeAt(a, 0);
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var j = $charCodeAt(b, 0);
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if (!(i <= j)) {
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throw new $TypeError('Assertion failed: i is not <= j');
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}
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var arr = [];
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for (var k = i; k <= j; k += 1) {
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$push(arr, $fromCharCode(k));
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}
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return arr;
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};
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