Push & Pop...Need Help

Ok, normally I am not such a N00b 🧟! However, I just can't grasp the understanding of the Push & Pop Paramters.

I understand that "Push" Pushes something onto the "Stack". Can I push other things besides Strings? I also understand that "Pop" pops things off the Stack into a Variable.

So here's the crux...I've seen a lot of Sample Functions...a lot of which make no sense to me because in the begining of the Functions, someone is doing a "Push" but not supplying any info?? I guess I understand that there are no "real" Parameters for Functions and that I must Push and Pop off the Stack what I need for that Function...

So I guess I need a better explanation of "Push", "Pop", and "Exch" so I can better program these Scripts. The info in the Help Files is meaningless to me...it's only a basic description and technical jargon!

I need definitions! I need Examples and why! 😢

there were quite a few threads about this, searching for them might clear out things.

Thanks, I had been searching on these Forums for 2 hours, but I finally found something useful now...