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Asked: 2026-05-27T08:43:15+00:00

Ok, other than purchasing a beast of a machine to improve performance… I’ve got

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Ok, other than purchasing a beast of a machine to improve performance…

I’ve got a Javascript/AJAX driven web app that was written utilizing jQuery in order to speed up inital development time. I’m finding that from a performance perspective, I’m ready to begin supplanting piece by piece to improve the code efficiency.

One Example…

http://jsperf.com/innerhtml-vs-jquery

I moved away from using $(selector).text() in active areas to naitive DOM access with getElementById(id).innerHTML

I’m a little bit at a loss as to where to go next in terms of getting the most bang for my buck, what are some glaring areas where utilizing jQuery causes you to take a performance hit (outside load times)?

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1 Answer

  1. Editorial Team

    jQuery Performance Rules

    1. Use Tags Before Classes
    2. Cache jQuery Objects
    3. Harness the Power of Chaining
    4. Use Sub-queries
    5. Limit Direct DOM Manipulation
    6. Leverage Event Delegation (a.k.a. Bubbling)
    7. Eliminate Query Waste
    8. Defer to $(window).load
    9. Compress Your JS
    10. Learn the Library
    11. Always Descend From an #id

    These are the key areas, that I always keep in mind when using jQuery.

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