Sha256: 87b6349b8bfc1eea5ef908e0e6d704a09f404330a3ff7cc3ccb8ab55a5b6a236
Contents?: true
Size: 1.33 KB
Versions: 54
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Stored size: 1.33 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $Number = GetIntrinsic('%Number%');
var $RegExp = GetIntrinsic('%RegExp%');
var $TypeError = GetIntrinsic('%TypeError%');
var $parseInteger = GetIntrinsic('%parseInt%');
var callBound = require('call-bind/callBound');
var regexTester = require('safe-regex-test');
var $strSlice = callBound('String.prototype.slice');
var isBinary = regexTester(/^0b[01]+$/i);
var isOctal = regexTester(/^0o[0-7]+$/i);
var isInvalidHexLiteral = regexTester(/^[-+]0x[0-9a-f]+$/i);
var nonWS = ['\u0085', '\u200b', '\ufffe'].join('');
var nonWSregex = new $RegExp('[' + nonWS + ']', 'g');
var hasNonWS = regexTester(nonWSregex);
var $trim = require('string.prototype.trim');
var Type = require('./Type');
// https://262.ecma-international.org/13.0/#sec-stringtonumber
module.exports = function StringToNumber(argument) {
if (Type(argument) !== 'String') {
throw new $TypeError('Assertion failed: `argument` is not a String');
}
if (isBinary(argument)) {
return $Number($parseInteger($strSlice(argument, 2), 2));
}
if (isOctal(argument)) {
return $Number($parseInteger($strSlice(argument, 2), 8));
}
if (hasNonWS(argument) || isInvalidHexLiteral(argument)) {
return NaN;
}
var trimmed = $trim(argument);
if (trimmed !== argument) {
return StringToNumber(trimmed);
}
return $Number(argument);
};
Version data entries
54 entries across 27 versions & 2 rubygems