http://www.perlmonks.org?node_id=494501


in reply to understanding closures

reasonablekeith,
You may want to have a look at Help with the concept of closures. and Closure on Closures. A closure is basically a piece of code that can be executed outside of the scope it was defined, but can still remembers things from that scope. I know you were asking specific questions but I feel those two links will help give you a broader and deeper understanding of the concept.

Cheers - L~R