source: imaps-frontend/node_modules/es-abstract/2022/IsLooselyEqual.js@ 79a0317

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Last change on this file since 79a0317 was 79a0317, checked in by stefan toskovski <stefantoska84@…>, 3 days ago

F4 Finalna Verzija

  • Property mode set to 100644
File size: 1.7 KB
Line 
1'use strict';
2
3var isFinite = require('math-intrinsics/isFinite');
4
5var IsStrictlyEqual = require('./IsStrictlyEqual');
6var StringToBigInt = require('./StringToBigInt');
7var ToNumber = require('./ToNumber');
8var ToPrimitive = require('./ToPrimitive');
9var Type = require('./Type');
10
11var isObject = require('../helpers/isObject');
12
13// https://262.ecma-international.org/13.0/#sec-islooselyequal
14
15module.exports = function IsLooselyEqual(x, y) {
16 if (Type(x) === Type(y)) {
17 return IsStrictlyEqual(x, y);
18 }
19 if (x == null && y == null) {
20 return true;
21 }
22 if (typeof x === 'number' && typeof y === 'string') {
23 return IsLooselyEqual(x, ToNumber(y));
24 }
25 if (typeof x === 'string' && typeof y === 'number') {
26 return IsLooselyEqual(ToNumber(x), y);
27 }
28 if (typeof x === 'bigint' && typeof y === 'string') {
29 var n = StringToBigInt(y);
30 if (typeof n === 'undefined') {
31 return false;
32 }
33 return IsLooselyEqual(x, n);
34 }
35 if (typeof x === 'string' && typeof y === 'bigint') {
36 return IsLooselyEqual(y, x);
37 }
38 if (typeof x === 'boolean') {
39 return IsLooselyEqual(ToNumber(x), y);
40 }
41 if (typeof y === 'boolean') {
42 return IsLooselyEqual(x, ToNumber(y));
43 }
44 if ((typeof x === 'string' || typeof x === 'number' || typeof x === 'symbol' || typeof x === 'bigint') && isObject(y)) {
45 return IsLooselyEqual(x, ToPrimitive(y));
46 }
47 if (isObject(x) && (typeof y === 'string' || typeof y === 'number' || typeof y === 'symbol' || typeof y === 'bigint')) {
48 return IsLooselyEqual(ToPrimitive(x), y);
49 }
50 if ((typeof x === 'bigint' && typeof y === 'number') || (typeof x === 'number' && typeof y === 'bigint')) {
51 if (!isFinite(x) || !isFinite(y)) {
52 return false;
53 }
54 // eslint-disable-next-line eqeqeq
55 return x == y; // shortcut for step 13.b.
56 }
57 return false;
58};
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