tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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map-expand-contract.js (651B)

      1 // Copyright (C) 2015 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: Map entry insertion during traversal using for..of
      6 info: |
      7    New entries inserted into a Map instance during traversal should not be
      8    visited if they are removed prior to visitation.
      9 es6id: 13.6.4
     10 features: [Map]
     11 ---*/
     12 
     13 var map = new Map();
     14 var iterationCount = 0;
     15 
     16 map.set(0, 'a');
     17 
     18 for (var x of map) {
     19  assert.sameValue(x[0], 0);
     20  assert.sameValue(x[1], 'a');
     21 
     22  map.set(1, 'b');
     23  map.delete(1);
     24 
     25  iterationCount += 1;
     26 }
     27 
     28 assert.sameValue(iterationCount, 1);
     29 
     30 reportCompare(0, 0);