$this vs $(this) in jQuery

Question

I\'ve seen some discussions on SO regarding $(this) vs $this in jQuery, and they make sense to me. (See discussion here for an example.)

Bu

Answer 1

Inside $.fn.lockDimensions, this is the jQuery object that had lockDimensions called on it.

Inside the .each, this now references the DOMElement in the current iteration of the loop. $(this) wraps the DOMElement in a jQuery object, and var $this = $(this); is just saving $(this) in a variable called $this, so the jQuery constructor doesn't need to be called multiple times (if you were to use $(this) instead).