string-astral.js - mozsearch

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// Copyright (C) 2015 the V8 project authors. All rights reserved.

// This code is governed by the BSD license found in the LICENSE file.

/*---

description: String traversal using for..of (astral symbols)

info: |

    String literals should be able to be traversed using a `for...of` loop. The

    loop body should execute once for each astral symbol.

es6id: 13.6.4

---*/

var string = 'a\ud801\udc28b\ud801\udc28';

var first = 'a';

var second = '𐐨';

var third = 'b';

var fourth = '𐐨';

var iterationCount = 0;

for (var value of string) {

  assert.sameValue(value, first);

  first = second;

  second = third;

  third = fourth;

  fourth = null;

  iterationCount += 1;

assert.sameValue(iterationCount, 4);

reportCompare(0, 0);