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| author | wycats <wycats@gmail.com> | 2010-10-09 21:33:02 -0700 |
|---|---|---|
| committer | wycats <wycats@gmail.com> | 2010-10-09 21:33:02 -0700 |
| commit | 0ca35de311ff4d1dac5c9dc4de05a32a1754cd7a (patch) | |
| tree | 7319a8a94e5601c052ea79be91d3d923f2ee0188 /speed | |
| parent | cbf9d874e52212d0289deae747066eccfebde770 (diff) | |
| download | jquery-0ca35de311ff4d1dac5c9dc4de05a32a1754cd7a.tar.gz jquery-0ca35de311ff4d1dac5c9dc4de05a32a1754cd7a.zip | |
Should improve performance of closest considerably. Benchmark proof in speed/closest.html
Diffstat (limited to 'speed')
| -rw-r--r-- | speed/benchmark.js | 10 | ||||
| -rw-r--r-- | speed/closest.html | 35 |
2 files changed, 43 insertions, 2 deletions
diff --git a/speed/benchmark.js b/speed/benchmark.js index 8f1aa985a..50d5cad69 100644 --- a/speed/benchmark.js +++ b/speed/benchmark.js @@ -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; } diff --git a/speed/closest.html b/speed/closest.html new file mode 100644 index 000000000..eacf74935 --- /dev/null +++ b/speed/closest.html @@ -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> + |