tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

optional-chain-expression-optional-expression.js (545B)

      1 // Copyright 2019 Google, Inc.  All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: prod-OptionalExpression
      5 description: >
      6  optional chain bracket notation containing optional expresion
      7 info: |
      8  OptionalChain:
      9    ?. [OptionalExpression]
     10 features: [optional-chaining]
     11 ---*/
     12 const a = undefined;
     13 const b = {e: 0};
     14 const c = {};
     15 c[undefined] = 11;
     16 const d = [22];
     17 
     18 assert.sameValue(undefined, a?.[a?.b]);
     19 assert.sameValue(11, c?.[a?.b]);
     20 assert.sameValue(22, d?.[b?.e]);
     21 
     22 reportCompare(0, 0);