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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 23.4.1.1
esid: sec-weakset-iterable
description: >
If the iterable argument is undefined, return new Weakset object.
info: |
23.4.1.1 WeakSet ( [ iterable ] )
...
5. If iterable is not present, let iterable be undefined.
6. If iterable is either undefined or null, let iter be undefined.
...
8. If iter is undefined, return set.
...
---*/
var a = new WeakSet();
var b = new WeakSet(undefined);
var c = new WeakSet(null);
assert.sameValue(Object.getPrototypeOf(a), WeakSet.prototype);
assert.sameValue(Object.getPrototypeOf(b), WeakSet.prototype);
assert.sameValue(Object.getPrototypeOf(c), WeakSet.prototype);
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