Sha256: 704851fec3378f55a9a2bcfb693f7c3197a4add35b812755a07b0c0016b870de
Contents?: true
Size: 1.6 KB
Versions: 54
Compression:
Stored size: 1.6 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var $Number = GetIntrinsic('%Number%');
var $RegExp = GetIntrinsic('%RegExp%');
var $parseInteger = GetIntrinsic('%parseInt%');
var callBound = require('call-bind/callBound');
var regexTester = require('safe-regex-test');
var isPrimitive = require('../helpers/isPrimitive');
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 ToPrimitive = require('./ToPrimitive');
// https://262.ecma-international.org/6.0/#sec-tonumber
module.exports = function ToNumber(argument) {
var value = isPrimitive(argument) ? argument : ToPrimitive(argument, $Number);
if (typeof value === 'symbol') {
throw new $TypeError('Cannot convert a Symbol value to a number');
}
if (typeof value === 'bigint') {
throw new $TypeError('Conversion from \'BigInt\' to \'number\' is not allowed.');
}
if (typeof value === 'string') {
if (isBinary(value)) {
return ToNumber($parseInteger($strSlice(value, 2), 2));
} else if (isOctal(value)) {
return ToNumber($parseInteger($strSlice(value, 2), 8));
} else if (hasNonWS(value) || isInvalidHexLiteral(value)) {
return NaN;
}
var trimmed = $trim(value);
if (trimmed !== value) {
return ToNumber(trimmed);
}
}
return $Number(value);
};
Version data entries
54 entries across 27 versions & 2 rubygems