mirror of https://github.com/tc39/test262.git
25 lines
551 B
JavaScript
25 lines
551 B
JavaScript
// Copyright (C) 2023 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
description: Test isSubsetOf set method on a set like with equal size.
|
|
features: [set-methods]
|
|
---*/
|
|
|
|
const SetLike = {
|
|
arr: [42, 44, 45],
|
|
size: 3,
|
|
keys() {
|
|
return this.arr[Symbol.iterator]();
|
|
},
|
|
has(key) {
|
|
return this.arr.indexOf(key) != -1;
|
|
}
|
|
};
|
|
|
|
const firstSet = new Set();
|
|
firstSet.add(42);
|
|
firstSet.add(43);
|
|
firstSet.add(45);
|
|
|
|
assert.sameValue(firstSet.isSubsetOf(SetLike), false);
|