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Commit Description:
add model solution
Commit Description:
add model solution
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node_modules/core-js/modules/es6.number.constructor.js
| 69 lines
| 2.7 KiB
| application/javascript
| JavascriptLexer
|
| r789 | 'use strict'; | |||
| var global = require('./_global'); | ||||
| var has = require('./_has'); | ||||
| var cof = require('./_cof'); | ||||
| var inheritIfRequired = require('./_inherit-if-required'); | ||||
| var toPrimitive = require('./_to-primitive'); | ||||
| var fails = require('./_fails'); | ||||
| var gOPN = require('./_object-gopn').f; | ||||
| var gOPD = require('./_object-gopd').f; | ||||
| var dP = require('./_object-dp').f; | ||||
| var $trim = require('./_string-trim').trim; | ||||
| var NUMBER = 'Number'; | ||||
| var $Number = global[NUMBER]; | ||||
| var Base = $Number; | ||||
| var proto = $Number.prototype; | ||||
| // Opera ~12 has broken Object#toString | ||||
| var BROKEN_COF = cof(require('./_object-create')(proto)) == NUMBER; | ||||
| var TRIM = 'trim' in String.prototype; | ||||
| // 7.1.3 ToNumber(argument) | ||||
| var toNumber = function (argument) { | ||||
| var it = toPrimitive(argument, false); | ||||
| if (typeof it == 'string' && it.length > 2) { | ||||
| it = TRIM ? it.trim() : $trim(it, 3); | ||||
| var first = it.charCodeAt(0); | ||||
| var third, radix, maxCode; | ||||
| if (first === 43 || first === 45) { | ||||
| third = it.charCodeAt(2); | ||||
| if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix | ||||
| } else if (first === 48) { | ||||
| switch (it.charCodeAt(1)) { | ||||
| case 66: case 98: radix = 2; maxCode = 49; break; // fast equal /^0b[01]+$/i | ||||
| case 79: case 111: radix = 8; maxCode = 55; break; // fast equal /^0o[0-7]+$/i | ||||
| default: return +it; | ||||
| } | ||||
| for (var digits = it.slice(2), i = 0, l = digits.length, code; i < l; i++) { | ||||
| code = digits.charCodeAt(i); | ||||
| // parseInt parses a string to a first unavailable symbol | ||||
| // but ToNumber should return NaN if a string contains unavailable symbols | ||||
| if (code < 48 || code > maxCode) return NaN; | ||||
| } return parseInt(digits, radix); | ||||
| } | ||||
| } return +it; | ||||
| }; | ||||
| if (!$Number(' 0o1') || !$Number('0b1') || $Number('+0x1')) { | ||||
| $Number = function Number(value) { | ||||
| var it = arguments.length < 1 ? 0 : value; | ||||
| var that = this; | ||||
| return that instanceof $Number | ||||
| // check on 1..constructor(foo) case | ||||
| && (BROKEN_COF ? fails(function () { proto.valueOf.call(that); }) : cof(that) != NUMBER) | ||||
| ? inheritIfRequired(new Base(toNumber(it)), that, $Number) : toNumber(it); | ||||
| }; | ||||
| for (var keys = require('./_descriptors') ? gOPN(Base) : ( | ||||
| // ES3: | ||||
| 'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' + | ||||
| // ES6 (in case, if modules with ES6 Number statics required before): | ||||
| 'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' + | ||||
| 'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger' | ||||
| ).split(','), j = 0, key; keys.length > j; j++) { | ||||
| if (has(Base, key = keys[j]) && !has($Number, key)) { | ||||
| dP($Number, key, gOPD(Base, key)); | ||||
| } | ||||
| } | ||||
| $Number.prototype = proto; | ||||
| proto.constructor = $Number; | ||||
| require('./_redefine')(global, NUMBER, $Number); | ||||
| } | ||||