bdde081050
Added test to ensure that release notes are parsed properly Updated to latest dependencies to fix security vulnerability Updated GH Actions Workflow to run test before updating tag Updated README.md to reflect proper whatsnew documentation.
60 lines
2.0 KiB
JavaScript
60 lines
2.0 KiB
JavaScript
'use strict';
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var GetIntrinsic = require('../GetIntrinsic');
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var $TypeError = GetIntrinsic('%TypeError%');
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var $Number = GetIntrinsic('%Number%');
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var $RegExp = GetIntrinsic('%RegExp%');
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var $parseInteger = GetIntrinsic('%parseInt%');
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var callBound = require('../helpers/callBound');
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var regexTester = require('../helpers/regexTester');
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var isPrimitive = require('../helpers/isPrimitive');
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var $strSlice = callBound('String.prototype.slice');
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var isBinary = regexTester(/^0b[01]+$/i);
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var isOctal = regexTester(/^0o[0-7]+$/i);
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var isInvalidHexLiteral = regexTester(/^[-+]0x[0-9a-f]+$/i);
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var nonWS = ['\u0085', '\u200b', '\ufffe'].join('');
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var nonWSregex = new $RegExp('[' + nonWS + ']', 'g');
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var hasNonWS = regexTester(nonWSregex);
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// whitespace from: https://es5.github.io/#x15.5.4.20
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// implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
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var ws = [
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'\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
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'\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
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'\u2029\uFEFF'
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].join('');
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var trimRegex = new RegExp('(^[' + ws + ']+)|([' + ws + ']+$)', 'g');
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var $replace = callBound('String.prototype.replace');
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var $trim = function (value) {
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return $replace(value, trimRegex, '');
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};
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var ToPrimitive = require('./ToPrimitive');
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// https://www.ecma-international.org/ecma-262/6.0/#sec-tonumber
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module.exports = function ToNumber(argument) {
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var value = isPrimitive(argument) ? argument : ToPrimitive(argument, $Number);
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if (typeof value === 'symbol') {
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throw new $TypeError('Cannot convert a Symbol value to a number');
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}
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if (typeof value === 'string') {
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if (isBinary(value)) {
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return ToNumber($parseInteger($strSlice(value, 2), 2));
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} else if (isOctal(value)) {
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return ToNumber($parseInteger($strSlice(value, 2), 8));
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} else if (hasNonWS(value) || isInvalidHexLiteral(value)) {
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return NaN;
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} else {
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var trimmed = $trim(value);
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if (trimmed !== value) {
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return ToNumber(trimmed);
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}
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}
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}
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return $Number(value);
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};
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