21 lines
486 B
JavaScript
21 lines
486 B
JavaScript
'use strict';
|
|
|
|
var GetIntrinsic = require('../GetIntrinsic');
|
|
|
|
var $TypeError = GetIntrinsic('%TypeError%');
|
|
|
|
var Get = require('./Get');
|
|
var ToLength = require('./ToLength');
|
|
var Type = require('./Type');
|
|
|
|
// https://tc39.es/ecma262/2020/#sec-lengthofarraylike
|
|
|
|
module.exports = function LengthOfArrayLike(obj) {
|
|
if (Type(obj) !== 'Object') {
|
|
throw new $TypeError('Assertion failed: `obj` must be an Object');
|
|
}
|
|
return ToLength(Get(obj, 'length'));
|
|
};
|
|
|
|
// TODO: use this all over
|