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- 'use strict';
- var isFinite = require('math-intrinsics/isFinite');
- var IsStrictlyEqual = require('./IsStrictlyEqual');
- var StringToBigInt = require('./StringToBigInt');
- var ToNumber = require('./ToNumber');
- var ToPrimitive = require('./ToPrimitive');
- var Type = require('./Type');
- var isObject = require('../helpers/isObject');
- // https://262.ecma-international.org/13.0/#sec-islooselyequal
- module.exports = function IsLooselyEqual(x, y) {
- if (Type(x) === Type(y)) {
- return IsStrictlyEqual(x, y);
- }
- if (x == null && y == null) {
- return true;
- }
- if (typeof x === 'number' && typeof y === 'string') {
- return IsLooselyEqual(x, ToNumber(y));
- }
- if (typeof x === 'string' && typeof y === 'number') {
- return IsLooselyEqual(ToNumber(x), y);
- }
- if (typeof x === 'bigint' && typeof y === 'string') {
- var n = StringToBigInt(y);
- if (typeof n === 'undefined') {
- return false;
- }
- return IsLooselyEqual(x, n);
- }
- if (typeof x === 'string' && typeof y === 'bigint') {
- return IsLooselyEqual(y, x);
- }
- if (typeof x === 'boolean') {
- return IsLooselyEqual(ToNumber(x), y);
- }
- if (typeof y === 'boolean') {
- return IsLooselyEqual(x, ToNumber(y));
- }
- if ((typeof x === 'string' || typeof x === 'number' || typeof x === 'symbol' || typeof x === 'bigint') && isObject(y)) {
- return IsLooselyEqual(x, ToPrimitive(y));
- }
- if (isObject(x) && (typeof y === 'string' || typeof y === 'number' || typeof y === 'symbol' || typeof y === 'bigint')) {
- return IsLooselyEqual(ToPrimitive(x), y);
- }
- if ((typeof x === 'bigint' && typeof y === 'number') || (typeof x === 'number' && typeof y === 'bigint')) {
- if (!isFinite(x) || !isFinite(y)) {
- return false;
- }
- // eslint-disable-next-line eqeqeq
- return x == y; // shortcut for step 13.b.
- }
- return false;
- };
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