JSTests/ChakraCore/test/es5/ObjLitInitFld.js

//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------

var obj = {1:1, foo:1};
Output(obj);

Object.defineProperty(Object.prototype, '1', { value:"ProtoFoo", writable:false, configurable:true, enumerable:true });
Object.defineProperty(Object.prototype, 'foo', { value:"ProtoFoo", writable:false, configurable:true, enumerable:true });

var obj = {1:1, foo:1};
Output(obj);

delete Object.prototype[1];
delete Object.prototype.foo;

Object.defineProperty(Object.prototype, '1', {
  get: function() { WScript.Echo("GETTER"); },
  set: function(v) { WScript.Echo("SETTER"); },
  configurable:true, enumerable:true });
Object.defineProperty(Object.prototype, 'foo', {
  get: function() { WScript.Echo("GETTER"); },
  set: function(v) { WScript.Echo("SETTER"); },
  configurable:true, enumerable:true });

var obj = {1:1, foo:1};
Output(obj);

function Output(o)
{
  for (var i in o)
  {
    WScript.Echo(i + ": '" + o[i] + "'");
  }
}