Created
May 17, 2011 20:40
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| <html> | |
| <head> | |
| <title>Test</title> | |
| </head> | |
| <body> | |
| <div id="object"> | |
| <div class="box"></div> | |
| </div> | |
| <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.0/jquery.min.js"></script> | |
| <script type="text/javascript"> | |
| var i = 0; | |
| var time = 0; | |
| var timer = function(action) { | |
| var d = new Date(); | |
| if (time < 0 || action == 'start') { | |
| var time = d.getTime(); | |
| return 0; | |
| } else if (action == 'stop') { | |
| var t = d.getTime() - time; | |
| var time = 0; | |
| return t; | |
| } else { | |
| return d.getTime() - time; | |
| } | |
| }; | |
| $(function(){ | |
| var $object = $('#object'); | |
| timer('start'); | |
| while (i < 100000) { | |
| $('.box', $object); | |
| ++i; | |
| } | |
| console.log(timer('stop')); | |
| i = 0; | |
| timer('start'); | |
| while(i < 100000) { | |
| $object.find('.box'); | |
| ++i; | |
| } | |
| console.log(timer('stop')); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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