// Copyright JS Foundation and other contributors, http://js.foundation // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. var object = { property: 'Batcat' }; Reflect.deleteProperty (object, 'property'); assert (object.property === undefined); assert (2 === Reflect.deleteProperty.length); try { Reflect.deleteProperty (); assert (false); } catch (e) { assert (e instanceof TypeError); } try { Reflect.deleteProperty (42, 'bat'); assert (false); } catch (e) { assert (e instanceof TypeError); } try { Reflect.deleteProperty (null, 'bat'); assert (false); } catch (e) { assert (e instanceof TypeError); } var target = {bat: 42}; var a = { [Symbol.toPrimitive]: function() { return 'bat' } }; var b = { [Symbol.toPrimitive]: function() { throw 'cat' } }; assert (Reflect.deleteProperty (target, a)); try { Reflect.deleteProperty (target, b); assert (false); } catch (e) { assert (e === 'cat'); }