Why is 1 faster than 2?
$('#p1').find('span');$('#p1 span');
Why is 1 faster than 2? $(‘#p1’).find(‘span’); $(‘#p1 span’);
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In jQuery 1.4 the selector is checked if it is an
idselector (like your#p1).document.getElementId(...)is called and result is wrapped in jQuery utility object and returned.