Created
June 13, 2011 14:38
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try/catch performance with requirejs
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script> | |
| var testIterations = 1e5; | |
| var benchmark = function(hint, m,i) { | |
| var d1 = new Date, d2, r; | |
| while(i--) | |
| r = m(); | |
| d2 = new Date; | |
| console.log(hint, d2.getTime()-d1.getTime()); | |
| } | |
| var a = 0, | |
| // simulate an AMD factory | |
| factory = function () { | |
| return { | |
| inc: function () { | |
| a += 1; | |
| } | |
| }; | |
| }, | |
| // simulate the module as a return value of the factory | |
| module = null; | |
| // define the module in a try/catch | |
| try { | |
| module = factory(); | |
| } | |
| catch(e) { | |
| } | |
| benchmark( 'try-catch', function() { | |
| // use the module | |
| module.inc(); | |
| }, testIterations); | |
| // reset all the test parameters | |
| a = 0; | |
| // define the module without a try/catch | |
| module = factory(); | |
| benchmark( 'plain', function() { | |
| // use the module | |
| module.inc(); | |
| }, testIterations); | |
| </script> | |
| </head> | |
| <body> | |
| <p> | |
| see console | |
| </p> | |
| </body> | |
| </html> |
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