195456/is-there-an-exists-function-for-jquery
How can I check the existence of an element in jQuery?
The current code that I have is this:
if ($(selector).length > 0) { // Do something }
Is there a more elegant way to approach this? Perhaps a plugin or a function?
Yes! The $. fn. exists example is replacing a property lookup (cheap!) with two function calls, which are much more expensive—and one of those function calls recreates a jQuery object that you already have.
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