how to find out if a checkbox is checked in jQuery
is there a simple way to find out if a checkbox is checked in jquery.
something like .checked or ischecked
el.is(':checked')
 That's the jQuery way.  At its core, though, it's just a bit more parsing to get down to el[0].checked , using the raw DOM property, so take whichever you prefer.  The DOM method is probably better for actually testing an element, whereas :checked is better for selecting it in the first place.  
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