pjs/js/perf/tests/array/concat-001.js

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JavaScript

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is JavaScript Engine performance test.
*
* The Initial Developer of the Original Code is Netscape Communications Corp.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s): Mazie Lobo mazielobo@netscape.com
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK *****
*
*
*
* Date: 04 October 2002
* SUMMARY: Testing |concat()| method of an Array. It joins two arrays and returns a new array.
*/
//----------------------------------------------------------------------------------------------
var UBOUND=100000;
test();
function test()
{
var u_bound=UBOUND;
var status;
var start;
var end;
var i;
var elt0, elt1,elt2;
var arr0, arr1, arr2;
// Arrays are empty
arr0 = new Array();
arr1 = new Array();
status = "concat()- empty arrays\t";
start = new Date();
for(i=0; i<u_bound; i++)
{
arr2=arr0.concat(arr1)
}
end = new Date();
reportTime(status, start, end);
// Arrays containing 3 uninitialized elements
arr0 = new Array(elt0, elt1, elt2);
arr1 = new Array(elt0, elt1, elt2);
status = "concat()- 3 elements \t";
start = new Date();
for(i=0; i<u_bound; i++)
{
arr2=arr0.concat(arr1)
}
end = new Date();
reportTime(status, start, end);
// Arrays containing 3 elements, each one a string
elt0="ABC";
elt1="DEF";
elt2="GHI";
arr0 = new Array(elt0, elt1, elt2);
arr1 = new Array(elt0, elt1, elt2);
status = "concat()- 3 string elements ";
start = new Date();
for(i=0; i<u_bound; i++)
{
arr2=arr0.concat(arr1)
}
end = new Date();
reportTime(status, start, end);
}