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comparison: js/src/jit-test/tests/collections/Map-iterator-1.js
js/src/jit-test/tests/collections/Map-iterator-1.js
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// for-of can be used to iterate over a Map twice.
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var map = Map([['a', 0], ['b', 1], ['c', 2]]);
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var log = '';
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for (let i = 0; i < 2; i++) {
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for (let [k, v] of map)
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log += k + v;
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log += ';'
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}
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assertEq(log, 'a0b1c2;a0b1c2;');