Ruby has a few methods for changing the case of strings. To convert to lowercase, use downcase: “hello James!”.downcase #=> “hello james!” Similarly, upcase capitalizes every letter and capitalize capitalizes the first letter of the string but lowercases the rest: “hello James!”.upcase #=> “HELLO JAMES!” “hello James!”.capitalize #=> “Hello james!” “hello James!”.titleize #=> “Hello James!” … Read more
This explanation is based on a commented Ruby script from a friend of mine. If you want to improve the script, feel free to update it at the link. First, note that when Ruby calls out to a shell, it typically calls /bin/sh, not Bash. Some Bash syntax is not supported by /bin/sh on all … Read more
You’re looking for include?: >> [‘Cat’, ‘Dog’, ‘Bird’].include? ‘Dog’ => true
Ruby uses the case expression instead. case x when 1..5 “It’s between 1 and 5” when 6 “It’s 6” when “foo”, “bar” “It’s either foo or bar” when String “You passed a string” else “You gave me #{x} — I have no idea what to do with that.” end Ruby compares the object in the … Read more