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52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
// Copyright 2014 Samsung Electronics Co., Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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var emptyObject = {}
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var propertyDescriptor = {
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enumerable: true,
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configurable: true,
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value: "hello!",
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writable: true
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}
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Object.defineProperty(emptyObject, 'myProperty', propertyDescriptor);
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var newPropertyDescriptor = {
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enumerable: false,
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configurable: false,
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writable: false
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}
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Object.defineProperty(emptyObject, 'myProperty', newPropertyDescriptor); //change properties of property
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var isWritable = false;
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var isEnumerable = false;
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var isConfigurable = false;
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emptyObject.myProperty = "foobar";
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if (emptyObject.myProperty == "foobar")
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isWritable = true;
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for (p in emptyObject) {
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if (emptyObject[p] == "foobar") {
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isEnumerable = true;
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break;
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}
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}
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if (delete emptyObject.myProperty)
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isConfigurable = true;
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assert(!isWritable && !isEnumerable && !isConfigurable);
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