File: delete-symbol-properties.js

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qtdeclarative-opensource-src-gles 5.15.17%2Bdfsg-1
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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 26.1.4
description: >
  Delete a symbol property.
info: |
  26.1.4 Reflect.deleteProperty ( target, propertyKey )

  ...
  2. Let key be ToPropertyKey(propertyKey).
  ...

  7.1.14 ToPropertyKey ( argument )

  ...
  3. If Type(key) is Symbol, then
    a. Return key.
  ...
features: [Symbol]
---*/

var s = Symbol('1');
var o = {};
o[s] = 42;

Reflect.deleteProperty(o, s);

assert.sameValue(o.hasOwnProperty(s), false);
assert.sameValue(o[s], undefined);