Grep vs Filter in jQuery?

Question

I was wondering about the differences between Grep and Filter :

Filter :

Reduce the set of matched elements to those that match the selector

Answer 1

The difference in its usage:

Filter:

$(selector).filter(selector/function)

Grep:

$.grep(array,function,invert)

So in your case I would rather use grep() because using array this way is unnecessary: $(arr).

I also suppose that grep function is faster, because it only accepts arrays.