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.
|
||
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
||
|
|
|
||
|
|
/*---
|
||
|
|
description: Map traversal using for..of
|
||
|
|
info: >
|
||
|
|
Map instances should be able to be traversed using a `for...of` loop.
|
||
|
|
es6id: 13.6.4
|
||
|
|
features: [Map]
|
||
|
|
---*/
|
||
|
|
|
||
|
|
var map = new Map();
|
||
|
|
var obj = {};
|
||
|
|
var iterationCount = 0;
|
||
|
|
|
||
|
|
var first = [0, 'a'];
|
||
|
|
var second = [true, false];
|
||
|
|
var third = [null, undefined];
|
||
|
|
var fourth = [NaN, obj];
|
||
|
|
|
||
|
|
map.set(0, 'a');
|
||
|
|
map.set(true, false);
|
||
|
|
map.set(null, undefined);
|
||
|
|
map.set(NaN, obj);
|
||
|
|
|
||
|
|
for (var x of map) {
|
||
|
|
assert.sameValue(x[0], first[0]);
|
||
|
|
assert.sameValue(x[1], first[1]);
|
||
|
|
first = second;
|
||
|
|
second = third;
|
||
|
|
third = fourth;
|
||
|
|
fourth = null;
|
||
|
|
iterationCount += 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
assert.sameValue(iterationCount, 4);
|