tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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trap-is-undefined-strict-strict.js (732B)

      1 'use strict';
      2 // Copyright (C) 2015 the V8 project authors. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 /*---
      5 es6id: 9.5.10
      6 description: >
      7    [[Delete]] (P)
      8 
      9    8. If trap is undefined, then Return target.[[Delete]](P).
     10 flags: [onlyStrict]
     11 features: [Proxy, Reflect]
     12 ---*/
     13 
     14 var target = {
     15  attr: 1
     16 };
     17 var p = new Proxy(target, {});
     18 
     19 assert.sameValue(delete p.attr, true);
     20 assert.sameValue(delete p.notThere, true);
     21 assert.sameValue(
     22  Object.getOwnPropertyDescriptor(target, "attr"),
     23  undefined
     24 );
     25 
     26 Object.defineProperty(target, "attr", {
     27  configurable: false,
     28  enumerable: true,
     29  value: 1
     30 });
     31 
     32 assert.sameValue(Reflect.deleteProperty(p, "attr"), false);
     33 
     34 reportCompare(0, 0);