deac/jquery
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Should improve performance of closest considerably. Benchmark proof in speed/closest.html

Browse source
This commit is contained in:
wycats 2010-10-09 21:33:02 -07:00
parent cbf9d874e5
commit 0ca35de311
3 changed files with 62 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

10
speed/benchmark.js
View file

@ -1,9 +1,15 @@
// Runs a function many times without the function call overhead
function benchmark(fn, times){
function benchmark(fn, times, name){
fn = fn.toString();
var s = fn.indexOf('{')+1,
e = fn.lastIndexOf('}');
fn = fn.substring(s,e);
return new Function('i','var t=new Date;while(i--){'+fn+'};return new Date-t')(times);
return benchmarkString(fn, times, name);
}
function benchmarkString(fn, times, name) {
var fn = new Function("i", "var t=new Date; while(i--) {" + fn + "}; return new Date - t")(times)
fn.displayName = name || "benchmarked";
return fn;
}

35
speed/closest.html Normal file
View file

@ -0,0 +1,35 @@
<!doctype html>
<html>
<head>
<title>Test Event Handling Performance</title>
<script src="benchmark.js"></script>
<script src="jquery-basis.js"></script>
<script>var old = jQuery.noConflict(true);</script>
<script src="../dist/jquery.js"></script>
<script>
jQuery(function ready() {
var node = $("#child"), name;
[".zoo", "#zoo", "[data-foo=zoo]", "#nonexistant"].forEach(function foreach(item) {
name = "closest '" + item + "'";
console.log(name);
console.log("new", benchmarkString("$('#child').closest('" + item + "')", 5000, name));
console.log("old", benchmarkString("old('#child').closest('" + item + "')", 5000, name));
});
});
</script>
</head>
<body>
<div>
<p>Hello</p>
<div class="zoo" id="zoo" data-foo="bar">
<div>
<p id="child">lorem ipsum</p>
<p>dolor sit amet</p>
</div>
</div>
</div>
</body>
</html>