[anc2020]

I'm not sure your code does as intended, won't the function be called only once the element is clicked?

This should work okay:

  for (var i = 0; i < 5; i++) {
    $(DOMelement:eq(i)).click((function(i) {
     return function() {
      console.info(i);
     }
    }(i)));
  }

Also surely DOMelement.eq(i) as opposed to DOMelement:eq(i)?

[sdevlin]

I think you're correct. His interior function is still just another closure around the original var i.

Also, this feels like piling on, but I think the original (intentionally erroneous) example would print '5' repeatedly rather than '4'. var i ends up with the value 5.

[csomar]

Yes, you are correct (I can't edit right now). You need to return a new function, and a reference actually.

for DOM part, I didn't understand your question. However, the right way to do it is

  $(DOMelement:eq(i)).each();

to iterate through each element.