Do you understand why the man bought only 10 eggs? If you don't probably you are at the wrong page.

I get it. Nice!😀

Why would he have bought the butter.

It looks like this to me:

buy('butter');

If (hasEggs) buy('eggs', 10);

He would've actually bought 10 blocks of butter, because they had eggs.

@beningreenjam true, forgot that part

My wife has learned that if she sends me to the store package type and quantity matter. She says buy canned corn. She assumes 1 can. Nope, sorry.

qty ||= 2

If nobody gets the ruby reference, if qty not specified default value is 2.

@beningreenjam he would buy 11, one is counted before the if block

...so i gues the OP is at the "wrong page"

@shekyb that's also true. I missed that.