Memory leak involving jQuery Ajax requests

Question

I have a webpage that\'s leaking memory in both IE8 and Firefox; the memory usage displayed in the Windows Process Explorer just keeps growing over time.

The followi

Answer 1

I'm not sure about the leak, but your resetTable() function is very inefficient. Try fixing those problems first and see where you end up.

• Don't append to the DOM in a loop. If you must do DOM manipulation, then append to a document fragment, and then move that fragment to the DOM.
• But innerHTML is faster than DOM manipulation anyway, so use that if you can.
• Store jQuery sets into local variables - no need to re-run the selector every time.
• Also store repeated references in a local variable.
• When iterating over a collection of any sort, store the length in a local variable, too.

New code:

 
    
    
 



    
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References:

• jQuery Peformance Rules
• Speed Up Your Javascript