| Tim van der Lippe | fdbd42e | 2020-04-07 14:14:36 | [diff] [blame] | 1 | 'use strict'; |
| 2 | |||||
| 3 | var Type = require('./Type'); | ||||
| 4 | |||||
| Tim van der Lippe | 2c89197 | 2021-07-29 15:22:50 | [diff] [blame] | 5 | // https://262.ecma-international.org/5.1/#sec-11.9.6 |
| Tim van der Lippe | fdbd42e | 2020-04-07 14:14:36 | [diff] [blame] | 6 | |
| 7 | module.exports = function StrictEqualityComparison(x, y) { | ||||
| 8 | var xType = Type(x); | ||||
| 9 | var yType = Type(y); | ||||
| 10 | if (xType !== yType) { | ||||
| 11 | return false; | ||||
| 12 | } | ||||
| 13 | if (xType === 'Undefined' || xType === 'Null') { | ||||
| 14 | return true; | ||||
| 15 | } | ||||
| 16 | return x === y; // shortcut for steps 4-7 | ||||
| 17 | }; | ||||