mirror of https://github.com/tc39/test262.git
37 lines
784 B
JavaScript
37 lines
784 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 traversal using for..of
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info: >
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Map instances should be able to be traversed using a `for...of` loop.
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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 obj = {};
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var iterationCount = 0;
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var first = [0, 'a'];
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var second = [true, false];
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var third = [null, undefined];
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var fourth = [NaN, obj];
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map.set(0, 'a');
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map.set(true, false);
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map.set(null, undefined);
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map.set(NaN, obj);
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for (var x of map) {
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assert.sameValue(x[0], first[0]);
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assert.sameValue(x[1], first[1]);
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first = second;
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second = third;
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third = fourth;
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fourth = null;
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iterationCount += 1;
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}
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assert.sameValue(iterationCount, 4);
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