Edit File: CanonicalNumericIndexString.js
'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var SameValue = require('./SameValue'); var ToNumber = require('./ToNumber'); var ToString = require('./ToString'); var Type = require('./Type'); // https://ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring module.exports = function CanonicalNumericIndexString(argument) { if (Type(argument) !== 'String') { throw new $TypeError('Assertion failed: `argument` must be a String'); } if (argument === '-0') { return -0; } var n = ToNumber(argument); if (SameValue(ToString(n), argument)) { return n; } return void 0; };
Back to File Manager