tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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emulates-undefined.js (929B)

      1 // Copyright (C) 2020 Alexey Shvayka. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-equality-operators-runtime-semantics-evaluation
      5 description: >
      6  Strict Equality Comparison doesn't special-case [[IsHTMLDDA]] objects.
      7 info: |
      8  EqualityExpression : EqualityExpression === RelationalExpression 
      9 
     10  [...]
     11  5. Return the result of performing Strict Equality Comparison rval === lval.
     12 
     13  Strict Equality Comparison
     14 
     15  1. If Type(x) is different from Type(y), return false.
     16 features: [IsHTMLDDA]
     17 ---*/
     18 
     19 var IsHTMLDDA = $262.IsHTMLDDA;
     20 
     21 assert.sameValue(IsHTMLDDA === undefined, false, "=== with `undefined`");
     22 assert.sameValue(undefined === IsHTMLDDA, false, "=== with `undefined`");
     23 
     24 assert.sameValue(IsHTMLDDA === null, false, "=== with `null`");
     25 assert.sameValue(null === IsHTMLDDA, false, "=== with `null`");
     26 
     27 assert(IsHTMLDDA === IsHTMLDDA);
     28 
     29 reportCompare(0, 0);