Integer evaluation with 'case'

Question

Hello.

I'm having a hard time trying to understand what is wrong with the code and why it's doesn't work as I expect :
https://code.sololearn.com/cBB87KVpV26u/#rb

The variation without user input. Same result.
https://code.sololearn.com/ccy1E1wFc65a/#rb

But it works like magic when I wrap this into the method and call it with a parameter:
https://code.sololearn.com/cGkef6WmrM1G/#rb

Any help would be appreciated :)

Answer 1

replace case n by n = case in the three examples and see what happens

Answer 2

Thanks, Ivan. I read almost all of these articles before. In most examples "case n" form is fine. I'm still not sure what is going on here and it is actualy a surprise for me that it works even with simple "case" word, without "n = " or "n".
https://code.sololearn.com/cXJ5l2kkulDR/#rb

I rewrite the code a little. It looks better this way or not?
https://code.sololearn.com/cFizjf9s5831/#rb

Answer 3

Maybe this helps a little

http://stackoverflow.com/documentation/ruby/640/control-flow/3506/case-statement#t=201607220817347592243

http://stackoverflow.com/questions/948135/how-to-write-a-switch-statement-in-ruby

http://rubytutorial.wikidot.com/condiciones-loops

http://stackoverflow.com/questions/40899186/case-statement-and-comparison-with-integers

http://www.skorks.com/2009/08/how-a-ruby-case-statement-works-and-what-you-can-do-with-it/

Answer 4

Arkadly, good for you! titanic work!