tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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subclassable.js (763B)

      1 // Copyright (C) 2020 Rick Waldron. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-iterator-constructor
      6 description: >
      7  The Iterator constructor is designed to be subclassable.
      8 info: |
      9  The Iterator constructor
     10 
     11  - is designed to be subclassable. It may be used as the value of an extends clause of a class defintion.
     12 
     13 features: [iterator-helpers]
     14 ---*/
     15 
     16 class SubIterator extends Iterator {}
     17 
     18 assert.sameValue(
     19  new SubIterator() instanceof SubIterator,
     20  true,
     21  'The result of `(new SubIterator() instanceof SubIterator)` is true'
     22 );
     23 assert.sameValue(
     24  new SubIterator() instanceof Iterator,
     25  true,
     26  'The result of `(new SubIterator() instanceof Iterator)` is true'
     27 );
     28 
     29 reportCompare(0, 0);