Ruby Newbie-help regarding strings

Hello All,

I am very new to ruby.I have a small doubt.

suppose i have a string called 'add',I want this to get saved when
given in any of the following conditions



it should be converted back in to small case and displayed back

how can i achieve this


use .downcase

string.downcase returns the downcased version of the string - it does
not affect the source object. If you want that reference to become
downcase you need

str = "ADD"

str = str.downcase

str.downcase will do what it's supposed to, but str will still be
whatever it was originally. If you're new to OO programming this one
can really confuse you.