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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>qooxdoo » Demo</title>
<link type="text/css" rel="stylesheet" href="../../resource/css/layout.css"/>
<!--[if IE]>
<link type="text/css" rel="stylesheet" href="../../resource/css/layout_ie.css"/>
<![endif]-->
<script type="text/javascript" src="../../script/qx.js"></script>
</head>
<body>
<script type="text/javascript" src="../../script/layout.js"></script>
<div id="demoDescription">
<p>Tests for String Performance. Using cached string instances for concat.</p>
<ol>
<li>Operator +=</li>
<li>Operators = and +</li>
<li>Concat function</li>
<li>Array Push</li>
<li>Array Index</li>
<li>StringBuilder Object</li>
</ol>
</div>
<script type="text/javascript">
qx.core.Init.getInstance().defineMain(function()
{
var e = "";
var a = "a";
function StringConcatShort(vLoops)
{
var s = e;
for (var i=0; i<vLoops; i++) {
s += a;
};
};
function StringConcatShortAlt(vLoops)
{
var s = e;
for (var i=0; i<vLoops; i++) {
s = s + a;
};
};
function StringConcatMethod(vLoops)
{
var s = e;
for (var i=0; i<vLoops; i++) {
s=s.concat(a);
};
};
function StringConcatArrayPush(vLoops)
{
var s = [];
for (var i=0; i<vLoops; i++) {
s.push(a);
};
s = s.join(e);
};
function StringConcatArrayAdd(vLoops)
{
var s = [];
for (var i=0; i<vLoops; i++) {
s[s.length] = a;
};
s = s.join(e);
};
function StringConcatStringBuilder(vLoops)
{
var s = new qx.type.StringBuilder;
for (var i=0; i<vLoops; i++) {
s.add(a);
};
s = s.get();
};
new qx.dev.TimeTracker(StringConcatShort, StringConcatShortAlt,
StringConcatMethod, StringConcatArrayPush, StringConcatArrayAdd,
StringConcatStringBuilder);
});
</script>
</body>
</html>
|
