<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Javascript performance test</title>
<style>
body, span{font-family: verdana, sans serif; font-size: 12px;}
input{margin-right: 20px;}
span{padding-left: 20px;}
</style>
<script>
var start;
var end;
var forLoopTime = 0;
var addTime = 0;
var subtractTime = 0;
var multiplyTime = 0;
var divideTime = 0;
var divide2Time = 0;
var fromArrayTime = 0;
var parseIntTime = 0;
var varTime = 0;
var sinTime = 0;
var floorTime = 0;
var ifTime = 0;
var readGlobalTime = 0;
var concatStringsTime = 0;
var sortArrayTime = 0;
gValue = 123;
var continueAfter = false;
function testFor()
{
start = new Date();
for (var i=0; i<=1000000; i++)
{
void(0);
}
end = new Date();
forLoopTime = end-start;
var textElem = document.createTextNode(forLoopTime + 'ms ')
document.getElementById('forResult').appendChild(textElem);
completed();
}
function testAdd()
{
var value1=123;
var value2=234;
var value3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = value1 + value2;
}
end = new Date();
addTime = end-start;
var textElem = document.createTextNode(addTime + 'ms ')
document.getElementById('addResult').appendChild(textElem);
completed();
}
function testSubtract()
{
var value1=123;
var value2=234;
var value3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = value2 - value1
}
end = new Date();
subtractTime = end-start;
var textElem = document.createTextNode(subtractTime + 'ms ')
document.getElementById('subtractResult').appendChild(textElem);
completed();
}
function testMultiply()
{
var value1=123;
var value2=234;
var value3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = value2 * value1
}
end = new Date();
multiplyTime = end-start;
var textElem = document.createTextNode(multiplyTime + 'ms ')
document.getElementById('multiplyResult').appendChild(textElem);
completed();
}
function testDivide()
{
var value1=123;
var value2=234;
var value3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = value2 / value1
}
end = new Date();
divideTime = end-start;
var textElem = document.createTextNode(divideTime + 'ms ')
document.getElementById('divideResult').appendChild(textElem);
completed();
}
function testDivide2()
{
var value1=123;
var value2=234;
var value3;
start = new Date();
var temp= (1 / value1);
for (var i=0; i<=1000000; i++)
{
value3 = value2 * temp
}
end = new Date();
divide2Time = end-start;
var textElem = document.createTextNode(divide2Time + 'ms ')
document.getElementById('divide2Result').appendChild(textElem);
completed();
}
function testFromArray()
{
var value3;
var value4 = new Array(1,2,3,4,5,6,7,8,9,10)
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = value4[6]
}
end = new Date();
fromArrayTime = end-start;
var textElem = document.createTextNode(fromArrayTime + 'ms ')
document.getElementById('fromArrayResult').appendChild(textElem);
completed();
}
function testParseInt()
{
var value3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = parseInt(123.23)
}
end = new Date();
parseIntTime = end-start;
var textElem = document.createTextNode(parseIntTime + 'ms ')
document.getElementById('parseIntResult').appendChild(textElem);
completed();
}
function testVar()
{
start = new Date();
for (var i=0; i<=1000000; i++)
{
var a=1; var b=2; var c=3;
}
end = new Date();
varTime = end-start;
var textElem = document.createTextNode(varTime + 'ms ')
document.getElementById('varResult').appendChild(textElem);
completed();
}
function testSin()
{
var value3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = Math.sin(.1)
}
end = new Date();
sinTime = end-start;
var textElem = document.createTextNode(sinTime + 'ms ')
document.getElementById('sinResult').appendChild(textElem);
completed();
}
function testFloor()
{
var value3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
value3 = Math.floor(43.341)
}
end = new Date();
floorTime = end-start;
var textElem = document.createTextNode(floorTime + 'ms ')
document.getElementById('floorResult').appendChild(textElem);
completed();
}
function testIf()
{
var value1=123;
start = new Date();
for (var i=0; i<=1000000; i++)
{
if (value1<12)
{
void(0);
}
}
end = new Date();
ifTime = end-start;
var textElem = document.createTextNode(ifTime + 'ms ')
document.getElementById('ifResult').appendChild(textElem);
completed();
}
function testReadGlobal()
{
var value
start = new Date();
for (var i=0; i<=1000000; i++)
{
value = gValue;
}
end = new Date();
readGlobalTime = end-start;
var textElem = document.createTextNode(readGlobalTime + 'ms ')
document.getElementById('readGlobalResult').appendChild(textElem);
completed();
}
function testConcatStrings()
{
var string1 = 'abcdefghijklmnopqrstuvxyz'
var string2 = 'abcdefghijklmnopqrstuvxyz'
var string3;
start = new Date();
for (var i=0; i<=1000000; i++)
{
string3 = string1 + string2;
}
end = new Date();
concatStringsTime = end-start;
var textElem = document.createTextNode(concatStringsTime + 'ms ')
document.getElementById('concatStringsResult').appendChild(textElem);
completed();
}
function testSortArray()
{
var theArray = new Array;
for(i=0; i<=10000; i++)
theArray[i] = parseInt(Math.random()*10000)
start = new Date();
theArray.sort();
end = new Date();
sortArrayTime = end-start;
var textElem = document.createTextNode(sortArrayTime + 'ms ')
document.getElementById('sortArrayResult').appendChild(textElem);
completed();
}
function completed()
{
if(continueAfter)
{
if(forLoopTime==0)
setTimeout('testFor()',10);
else
if(addTime==0)
setTimeout('testAdd()',10);
else
if(subtractTime==0)
setTimeout('testSubtract()',10);
else
if(multiplyTime==0)
setTimeout('testMultiply()',10);
else
if(divideTime==0)
setTimeout('testDivide()',10);
else
if(divide2Time==0)
setTimeout('testDivide2()',10);
else
if(fromArrayTime==0)
setTimeout('testFromArray()',10);
else
if(parseIntTime==0)
setTimeout('testParseInt()',10);
else
if(varTime==0)
setTimeout('testVar()',10);
else
if(sinTime==0)
setTimeout('testSin()',10);
else
if(floorTime==0)
setTimeout('testFloor()',10);
else
if(ifTime==0)
setTimeout('testIf()',10);
else
if(readGlobalTime==0)
setTimeout('testReadGlobal()',10);
else
if(concatStringsTime==0)
setTimeout('testConcatStrings()',10);
else
if(sortArrayTime==0)
setTimeout('testSortArray()',10);
else
continueAfter=false;
}
if(forLoopTime!=0&&addTime!=0&&subtractTime!=0&&multiplyTime!=0&÷Time!=0&÷2Time!=0&&fromArrayTime!=0&&parseIntTime!=0&&varTime!=0&&sinTime!=0&&floorTime!=0&&ifTime!=0&&readGlobalTime!=0&&concatStringsTime!=0&&sortArrayTime!=0)
{
averageTime = (forLoopTime+addTime+subtractTime+multiplyTime+divideTime+divide2Time+fromArrayTime+parseIntTime+varTime+sinTime+floorTime+ifTime+readGlobalTime+concatStringsTime+sortArrayTime)/15;
document.getElementById('averageResult').innerHTML = '<b>' + parseInt(averageTime) + 'ms</b>';
}
}
</script>
</head>
<body>
<form>
<input type="button" value="for-loop" onclick="testFor()">1000000 times:<span id="forResult"></span><br>
<input type="button" value="add" onclick="testAdd()">1000000 times: <span id="addResult"></span><br>
<input type="button" value="subtract" onclick="testSubtract()">1000000 times:<span id="subtractResult"></span><br>
<input type="button" value="multiply" onclick="testMultiply()">1000000 times:<span id="multiplyResult"></span><br>
<input type="button" value="divide" onclick="testDivide()">1000000 times:<span id="divideResult"></span><br>
<input type="button" value="divide2" onclick="testDivide2()">1000000 times:<span id="divide2Result"></span><br>
<input type="button" value="get value from array" onclick="testFromArray()">1000000 times:<span id="fromArrayResult"></span><br>
<input type="button" value="parseInt()" onclick="testParseInt()">1000000 times:<span id="parseIntResult"></span><br>
<input type="button" value="var" onclick="testVar()">1000000 times:<span id="varResult"></span><br>
<input type="button" value="Math.sin()" onclick="testSin()">1000000 times:<span id="sinResult"></span><br>
<input type="button" value="Math.floor()" onclick="testFloor()">1000000 times:<span id="floorResult"></span><br>
<input type="button" value="if" onclick="testIf()">1000000 times:<span id="ifResult"></span><br>
<input type="button" value="read global variable" onclick="testReadGlobal()">1000000 times:<span id="readGlobalResult"></span><br>
<input type="button" value="concatenate strings" onclick="testConcatStrings()">1000000 times:<span id="concatStringsResult"></span><br>
<input type="button" value="sort Array" onclick="testSortArray()"><span id="sortArrayResult"></span><br>
<br>
<input type="button" value="Run all tests" onclick="continueAfter=true;completed()">Average time: <span id="averageResult"></span>
</form>
</body>
</html>