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24 lines
648 B
JavaScript
24 lines
648 B
JavaScript
// Copyright (C) 2016 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: 19.3.1
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description: Subclassing Function
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info: |
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19.3.1 The Boolean Constructor
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The Boolean constructor is designed to be subclassable. It may be used as the
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value of an extends clause of a class definition.
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...
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---*/
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class Bln extends Boolean {}
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var b1 = new Bln(1);
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assert.notSameValue(b1, true, 'b1 is an Boolean object');
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assert.sameValue(b1.valueOf(), true);
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var b2 = new Bln(0);
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assert.notSameValue(b2, false, 'bln is an Boolean object');
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assert.sameValue(b2.valueOf(), false);
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