14 lines
456 B
JavaScript
14 lines
456 B
JavaScript
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// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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"use strict";
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class A extends Array {
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get [Symbol.isConcatSpreadable]() { return false; }
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}
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var obj = [].concat(new A(1, 2, 3), new A(4, 5, 6), new A(7, 8, 9));
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assertEquals(3, obj.length);
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assertEquals(3, obj[0].length);
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assertEquals(3, obj[1].length);
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assertEquals(3, obj[2].length);
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