$ ( "div .myclass"). dosomething ();

$ ( ". myclass : visible"). doSomething ();

.

? ? ????? JS ???? jQuery ?? ???? ? ?? X ??? ??????

jQuery ?? ???? ? ?? X ??? ??????

Christopher Nolan

Mar 01, 2025 am 12:44 AM

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??? jQuery ?? ??? ??????. jQuery ??? (?, ??? ??? ?? ID? ??? ??)? ??. jQuery.get () ??? ???? ????? ? ????? ??? ??? ?? ? ? ????. ??, ??? ??? ?? ? ?? ? ??? ??? ?? ?? ??????.

SO? ?? ??? ???? ???? ?? ??? ?????? ??? ????.

<span>var firstSpan = $('span.class:first'),
</span>    lastSpan <span>= $('span.class:last');</span>

?? ??? ?? n ?? ?? :

<span>var allSpans = $('span.class').get();</span>

??? ?? 10 ?? ?? ?? ?? 10-20? ??? ??? ?????? ??? ?? ???? ?? ?? ????.

<span>var firstSpan = $('span.class').get(0),
</span>    secondSpan <span>= $('span.class').get(1);
</span>    <span>//etc...</span>

???? .get () ??? ??? ??? ?? ??? ?? ??? ? ???? ????. jQuery .get () ??? ???? ??? ??? ????? ??? ????.

<span>var mySpans = $('span.class').get(0,10);</span>

??:

<span>(function($)
</span><span>{
</span>  <span>//function that gets a range of dom elements against a jQuery selector
</span>  <span>//returns an array of dom elements
</span>  $<span>.fn.getRange = function(start<span>,end</span>)
</span>  <span>{
</span>    <span>var elems = [];
</span>    <span>for ( var i = start; i < = end; i++ )
</span>    <span>{
</span>      elems<span>.push(this.get(i));
</span>    <span>}
</span>    <span>return elems;
</span>  <span>};
</span>
  <span>//testing
</span>  <span>console.log($('div').getRange(1,10));
</span>  <span>console.log($('div').getRange(10,20));
</span>
<span>})(jQuery);</span>

?? ??? ????? ??? ???? ???? ???? ????? ????? ???? ? ?? ??? ?? ????? ?? ?????? jQuery? ?? ?? ?? ?? (FAQ)