how to find out if a checkbox is checked in jQuery

is there a simple way to find out if a checkbox is开发者_开发知识库 checked in jquery.

something like .checked or ischecked

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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.