michael@0: // Copyright 2009 the Sputnik authors.  All rights reserved.
michael@0: // This code is governed by the BSD license found in the LICENSE file.
michael@0: 
michael@0: /**
michael@0:  * Reference to Self-Modifying Object remain the integrity
michael@0:  *
michael@0:  * @path ch08/8.7/S8.7_A2.js
michael@0:  * @description Create a reference to the array, and change original array
michael@0:  */
michael@0: 
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: //CHECK#1
michael@0: // Create an array of items
michael@0: var items = new Array( "one", "two", "three" );
michael@0: // Create a reference to the array of items
michael@0: var itemsRef = items;
michael@0: // Add an item to the original array
michael@0: items.push( "four" );var itemsRef = items;
michael@0: // The length of each array should be the same,
michael@0: // since they both point to the same array object
michael@0: if( itemsRef.length !== 4){
michael@0:   $ERROR('#1: var items = new Array( "one", "two", "three" ); var itemsRef = items; items.push( "four" );var itemsRef = items; itemsRef.length !== 4');
michael@0: };
michael@0: //
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: //CHECK#
michael@0: // Create an array of items
michael@0: var items = new Array( "one", "two", "three" );
michael@0: // Create a reference to the array of items
michael@0: var itemsRef = items;
michael@0: // Add an item to the original array
michael@0: items[1]="duo";
michael@0: // The length of each array should be the same,
michael@0: // since they both point to the same array object
michael@0: if( itemsRef[1] !== "duo"){
michael@0:   $ERROR('#2: var items = new Array( "one", "two", "three" ); var itemsRef = items; items[1]="duo"; itemsRef[1] === "duo". Actual: ' + (itemsRef[1]));
michael@0: };
michael@0: //
michael@0: //////////////////////////////////////////////////////////////////////////////
michael@0: