| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | 'use strict'; |
| 2 | |
| 3 | var GetIntrinsic = require('get-intrinsic'); |
| 4 | |
| 5 | var $TypeError = GetIntrinsic('%TypeError%'); |
| 6 | |
| 7 | var Get = require('./Get'); |
| 8 | var ToLength = require('./ToLength'); |
| 9 | var Type = require('./Type'); |
| 10 | |
| 11 | // https://262.ecma-international.org/11.0/#sec-lengthofarraylike |
| 12 | |
| 13 | module.exports = function LengthOfArrayLike(obj) { |
| 14 | if (Type(obj) !== 'Object') { |
| 15 | throw new $TypeError('Assertion failed: `obj` must be an Object'); |
| 16 | } |
| 17 | return ToLength(Get(obj, 'length')); |
| 18 | }; |
| 19 | |
| 20 | // TODO: use this all over |