tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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optional-chain-prod-identifiername.js (879B)

      1 // Copyright 2020 Salesforce.com, Inc. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: prod-OptionalExpression
      6 description: >
      7  Productions for ?. IdentifierName
      8 info: |
      9  OptionalChain[Yield, Await]:
     10    ?. IdentifierName
     11 features: [optional-chaining]
     12 ---*/
     13 
     14 const arr = [10, 11];
     15 const obj = {
     16  a: 'hello'
     17 };
     18 
     19 assert.sameValue(obj?.a, 'hello');
     20 assert.sameValue(obj?.\u0061, 'hello');
     21 assert.sameValue(obj?.\u{0061}, 'hello');
     22 
     23 assert.sameValue(obj?.\u0062, undefined);
     24 assert.sameValue(obj?.\u{0062}, undefined);
     25 
     26 assert.sameValue(arr ?. length, 2);
     27 assert.sameValue(arr ?. l\u0065ngth, 2);
     28 assert.sameValue(arr ?. l\u{0065}ngth, 2);
     29 
     30 assert.sameValue(obj?.$, undefined);
     31 
     32 obj.$ = 42;
     33 assert.sameValue(obj?.$, 42);
     34 
     35 assert.sameValue(obj?._, undefined);
     36 
     37 obj._ = 39;
     38 assert.sameValue(obj?._, 39);
     39 
     40 reportCompare(0, 0);