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- 'use strict';
- var $ = require('../internals/export');
- var IS_PURE = require('../internals/is-pure');
- var DESCRIPTORS = require('../internals/descriptors');
- var global = require('../internals/global');
- var path = require('../internals/path');
- var uncurryThis = require('../internals/function-uncurry-this');
- var isForced = require('../internals/is-forced');
- var hasOwn = require('../internals/has-own-property');
- var inheritIfRequired = require('../internals/inherit-if-required');
- var isPrototypeOf = require('../internals/object-is-prototype-of');
- var isSymbol = require('../internals/is-symbol');
- var toPrimitive = require('../internals/to-primitive');
- var fails = require('../internals/fails');
- var getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
- var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
- var defineProperty = require('../internals/object-define-property').f;
- var thisNumberValue = require('../internals/this-number-value');
- var trim = require('../internals/string-trim').trim;
- var NUMBER = 'Number';
- var NativeNumber = global[NUMBER];
- var PureNumberNamespace = path[NUMBER];
- var NumberPrototype = NativeNumber.prototype;
- var TypeError = global.TypeError;
- var stringSlice = uncurryThis(''.slice);
- var charCodeAt = uncurryThis(''.charCodeAt);
- // `ToNumeric` abstract operation
- // https://tc39.es/ecma262/#sec-tonumeric
- var toNumeric = function (value) {
- var primValue = toPrimitive(value, 'number');
- return typeof primValue == 'bigint' ? primValue : toNumber(primValue);
- };
- // `ToNumber` abstract operation
- // https://tc39.es/ecma262/#sec-tonumber
- var toNumber = function (argument) {
- var it = toPrimitive(argument, 'number');
- var first, third, radix, maxCode, digits, length, index, code;
- if (isSymbol(it)) throw new TypeError('Cannot convert a Symbol value to a number');
- if (typeof it == 'string' && it.length > 2) {
- it = trim(it);
- first = charCodeAt(it, 0);
- if (first === 43 || first === 45) {
- third = charCodeAt(it, 2);
- if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix
- } else if (first === 48) {
- switch (charCodeAt(it, 1)) {
- // fast equal of /^0b[01]+$/i
- case 66:
- case 98:
- radix = 2;
- maxCode = 49;
- break;
- // fast equal of /^0o[0-7]+$/i
- case 79:
- case 111:
- radix = 8;
- maxCode = 55;
- break;
- default:
- return +it;
- }
- digits = stringSlice(it, 2);
- length = digits.length;
- for (index = 0; index < length; index++) {
- code = charCodeAt(digits, index);
- // 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;
- };
- var FORCED = isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'));
- var calledWithNew = function (dummy) {
- // includes check on 1..constructor(foo) case
- return isPrototypeOf(NumberPrototype, dummy) && fails(function () { thisNumberValue(dummy); });
- };
- // `Number` constructor
- // https://tc39.es/ecma262/#sec-number-constructor
- var NumberWrapper = function Number(value) {
- var n = arguments.length < 1 ? 0 : NativeNumber(toNumeric(value));
- return calledWithNew(this) ? inheritIfRequired(Object(n), this, NumberWrapper) : n;
- };
- NumberWrapper.prototype = NumberPrototype;
- if (FORCED && !IS_PURE) NumberPrototype.constructor = NumberWrapper;
- $({ global: true, constructor: true, wrap: true, forced: FORCED }, {
- Number: NumberWrapper
- });
- // Use `internal/copy-constructor-properties` helper in `core-js@4`
- var copyConstructorProperties = function (target, source) {
- for (var keys = DESCRIPTORS ? getOwnPropertyNames(source) : (
- // ES3:
- 'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
- // ES2015 (in case, if modules with ES2015 Number statics required before):
- 'EPSILON,MAX_SAFE_INTEGER,MIN_SAFE_INTEGER,isFinite,isInteger,isNaN,isSafeInteger,parseFloat,parseInt,' +
- // ESNext
- 'fromString,range'
- ).split(','), j = 0, key; keys.length > j; j++) {
- if (hasOwn(source, key = keys[j]) && !hasOwn(target, key)) {
- defineProperty(target, key, getOwnPropertyDescriptor(source, key));
- }
- }
- };
- if (IS_PURE && PureNumberNamespace) copyConstructorProperties(path[NUMBER], PureNumberNamespace);
- if (FORCED || IS_PURE) copyConstructorProperties(path[NUMBER], NativeNumber);
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