36 lines
896 B
JavaScript
36 lines
896 B
JavaScript
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// Copyright 2018 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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var map = new Map([[1,2], [2,3], [3,4]]);
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var iterator = map.keys();
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assertEquals([1,2,3], [...map.keys()]);
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assertEquals([1,2,3], [...iterator]);
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assertEquals([], [...iterator]);
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iterator = map.values();
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assertEquals([2,3,4], [...iterator]);
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assertEquals([], [...iterator]);
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iterator = map.keys();
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iterator.next();
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assertEquals([2,3], [...iterator]);
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assertEquals([], [...iterator]);
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iterator = map.values();
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var iterator2 = map.values();
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map.delete(1);
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assertEquals([3,4], [...iterator]);
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assertEquals([], [...iterator]);
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map.set(1,5);
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assertEquals([3,4,5], [...iterator2]);
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assertEquals([], [...iterator2]);
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iterator = map.keys();
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map.set(4,6);
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assertEquals([2,3,1,4], [...iterator]);
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assertEquals([], [...iterator]);
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