1 /*
   2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * Check delete operator.
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 var obj = { foo: 3, bar: "hello" };
  32 
  33 print("foo" in obj);
  34 print(obj.foo);
  35 print(delete obj.foo);
  36 print("foo" in obj);
  37 
  38 print("bar" in obj);
  39 print(obj.bar);
  40 print(delete obj["bar"]);
  41 print("bar" in obj);
  42 
  43 print(delete obj.junk);
  44 print(delete obj["junk"]);
  45 print(delete obj[2]);
  46 
  47 x = 3;
  48 print(delete x);
  49 print("x" in this);
  50 
  51 // deleting literals
  52 print(delete 2);
  53 print(delete "hello");
  54 print(delete true);
  55 print(delete this);
  56 
  57 function func() {
  58     print(delete this);
  59 }
  60 
  61 var o = {};
  62 o.func = func;
  63 o.func();