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29 lines
629 B
JavaScript
29 lines
629 B
JavaScript
// 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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description: Map entry insertion during traversal using for..of
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info: |
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New entries inserted into a Map instance during traversal should not be
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visited if they are removed prior to visitation.
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es6id: 13.6.4
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features: [Map]
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---*/
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var map = new Map();
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var iterationCount = 0;
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map.set(0, 'a');
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for (var x of map) {
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assert.sameValue(x[0], 0);
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assert.sameValue(x[1], 'a');
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map.set(1, 'b');
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map.delete(1);
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iterationCount += 1;
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}
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assert.sameValue(iterationCount, 1);
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