mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 03:34:08 +01:00
452c0e5c61
* Automated assertion message update: Array.from * Automated assertion message update: Array.isArray * Automated assertion message update: Array length property * Automated assertion message update: Array.of * Automated assertion message update: Array * Automated assertion message update: Array.prototype.at * Automated assertion message update: Array.prototype.concat * Automated assertion message update: compareArray -> assert.compareArray
23 lines
581 B
JavaScript
23 lines
581 B
JavaScript
// Copyright 2015 Microsoft Corporation. All rights reserved.
|
|
// This code is governed by the license found in the LICENSE file.
|
|
|
|
/*---
|
|
description: Source is an object with missing values
|
|
esid: sec-array.from
|
|
es6id: 22.1.2.1
|
|
---*/
|
|
|
|
var array = [2, 4, , 16];
|
|
var obj = {
|
|
length: 4,
|
|
0: 2,
|
|
1: 4,
|
|
3: 16
|
|
};
|
|
|
|
var a = Array.from.call(Object, obj);
|
|
assert.sameValue(typeof a, "object", 'The value of `typeof a` is expected to be "object"');
|
|
for (var j = 0; j < a.length; j++) {
|
|
assert.sameValue(a[j], array[j], 'The value of a[j] is expected to equal the value of array[j]');
|
|
}
|