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POjquery selector, chaining
 

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  1. POjquery selector, chaining
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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/1881716/merging-jquery-objects">Merging jQuery objects</a> </p> </blockquote> <p> <br /> ** The goal is performance. The duplicate question addresses the function, but I don't believe adds performance value and doesn't address that aspect. ** <br /><br /> I want to chain several jQuery elements, for the sake of performance, but for optimization sake they're already cached in variables. </p> <p>so if I have</p> <pre><code>$elem1 = $('div#elem1'); $elem2 = $('div#elem2'); $elem3 = $('div#elem3'); </code></pre> <p>This doesn't work so well:</p> <pre><code>$elem1,$elem2,$elem3.hide(); </code></pre> <p>Is there any way to do that, chaining with already cached elements? </p> <p>Thanks!</p> <p>[Edits]<br /> Ok, I really need to clarify. My goal for chaining is performance, with the bonus of concise yet clear code.<br> $('div#elem1, div#elem2, div#elem3').hide(); <br /> defeats the point as it's no longer using the cached vars, but accessing the dom again. Accessing the dom is expensive, so i'm pretty sure it's slower than the 3 lines. <br /> .add() and .merge(), I'm assuming are more expensive than seperating the operation on three lines. For performance sake, until I have time to jPerf, I'll assume 3 different lines rather than extra operations has the best performance.<br> <br /><br /> Thanks for the collaboration, brainstorming, and thoughts, I do appreciate it. I wasn't aware of the possibilities and wouldn't have known what to test on jPerf otherwise. </p>
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    1. USDavid Hobs
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    1. COHow would you chain these if they were 'uncached' elements?
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      1. USDavid Barker
    2. COIf they were uncached it would be `$('div#elem1', 'div#elem2', 'div#elem3').hide()`
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      1. USNick
    3. COI think it would need to be this instead `$('div#elem1, div#elem2, div#elem3').hide()` passing multiple strings to jQuery doesn't work at least with my version...
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      1. USPebbl
 

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