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| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | |
| "http://www.w3.org/TR/html4/loose.dtd"> | |
| <head> | |
| <meta http-equiv="Content-type" content="text/html; charset=utf-8"> | |
| <title>Test</title> | |
| </head> | |
| <body id="test"> | |
| <script> | |
| function jaredsCreate(){ | |
| (function() { | |
| function create(object){ | |
| if (object){ | |
| create.prototype = object; | |
| return new create; | |
| } | |
| } | |
| Object.create || (Object.create = create); | |
| })(); | |
| }; | |
| function crockfordCreate(){ | |
| Object.create = function(o){ | |
| var F = function(){}; | |
| F.prototype = o; | |
| return new F(); | |
| }; | |
| }; | |
| function bench(str, f){ | |
| t = new Date(); | |
| f(); | |
| t2 = new Date(); | |
| document.write(str+": "+(t2-t)); | |
| } | |
| function test(){ | |
| for (var i=0; i < 100000; i++) { | |
| Object.create({}); | |
| }; | |
| }; | |
| crockfordCreate(); | |
| bench("crockford", test); | |
| document.write("<br/>"); | |
| jaredsCreate(); | |
| bench("jared", test); | |
| </script> | |
| </body> |
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