What is the difference between $.each(selector) and $(selector).each()

Question

What is the difference between this:

$.each($(\'#myTable input[name=\"deleteItem[]\"]:checked\').do_something());

and this:

Answer 1

From what I understand $.each(); loops through an object or array and gives you the iterator and value of each item.

$().each(); loops through a list of jQuery objects and gives you the iterator and the jQuery object.