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- 'use strict';
- var ToPrimitive = require('./ToPrimitive');
- var callBound = require('call-bound');
- var $replace = callBound('String.prototype.replace');
- var safeRegexTester = require('safe-regex-test');
- var isNonDecimal = safeRegexTester(/^0[ob]|^[+-]0x/);
- var $Number = Number;
- // http://262.ecma-international.org/5.1/#sec-9.3
- module.exports = function ToNumber(value) {
- var prim = ToPrimitive(value, $Number);
- if (typeof prim !== 'string') {
- return $Number(prim);
- }
- var trimmed = $replace(
- prim,
- // eslint-disable-next-line no-control-regex
- /^[ \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u0085]+|[ \t\x0b\f\xa0\ufeff\n\r\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u0085]+$/g,
- ''
- );
- if (isNonDecimal(trimmed)) {
- return NaN;
- }
- return +trimmed;
- };
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