/prog/ is an exciting place

Every day, every hour, every minute our world is changing. Each and every one of us takes part in this change. We observe it, we react to it, we cause it. We all come from different parts of this world and we all experiencing a different facet of existence. We all have our own story, our own path from which we came, and yet we all made our way here, to /prog/. No matter where we come from, we all participate in this message board, this evolving world wide programming community. This is why /prog/ is great.

>>13

Those boxes are visualised conses, a cons is a list holding two values, a nil value means that the list terminates.
A cons can point to another cons.
Example of a cons with the first value 5 and then a pointer to another cons which terminates the list with it's nil value:


(cons 4 (cons 5 nil))

Output is a list which looks like this:
'(4 5)