Created
January 4, 2012 16:26
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Log the time of JS operations
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| var logtime = (function() { | |
| var ids = {}; | |
| return function(id) { | |
| if (!ids[id]) { | |
| ids[id] = +new Date(); | |
| return; | |
| } | |
| var time = +new Date() - ids[id]; | |
| delete ids[id]; | |
| console.log(id + ': ' + time + 'ms'); | |
| return time; | |
| } | |
| }()); |
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| logtime('foo'); | |
| doSomethingExpensive(); | |
| logtime('foo'); // console logs the time between calls to logtime('foo') |
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All well and good until you're in IE8. And coupled with some less-inspired code we're talking seconds, not milliseconds!
Extending
consolefor this stuff might be smarter, though.