mirror of https://github.com/tc39/test262.git
25 lines
753 B
JavaScript
25 lines
753 B
JavaScript
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// Copyright (C) 2015 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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es6id: 23.4.1.1
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description: >
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If the iterable argument is undefined, return new Weakset object.
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info: >
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23.4.1.1 WeakSet ( [ iterable ] )
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...
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5. If iterable is not present, let iterable be undefined.
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6. If iterable is either undefined or null, let iter be undefined.
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...
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8. If iter is undefined, return set.
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...
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---*/
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var a = new WeakSet();
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var b = new WeakSet(undefined);
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var c = new WeakSet(null);
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assert.sameValue(Object.getPrototypeOf(a), WeakSet.prototype);
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assert.sameValue(Object.getPrototypeOf(b), WeakSet.prototype);
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assert.sameValue(Object.getPrototypeOf(c), WeakSet.prototype);
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