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Ruby Ruby Operators and Control Structures Logical Operators The Or (||) Operator

I'm having trouble and don't understand what this question is asking me. Can someone please explain what's wrong?

I could definitely use some pointers on "Modifying" a method as well.

def valid_command?(command)
  if command == yes && command == y && command == Y && command == YES
    return "true"


2 Answers

Justin Horner
Justin Horner
Treehouse Guest Teacher

Hello Rod,

The challenge is asking you to make the function return yes if the command is equal to one of the provided strings. The first problem with your code is you are returning yes only if command is equal to all of the strings because you're using AND (&&) instead of OR (||). The command argument can only be one of these values, it cannot be all of them.

The other problem is you are not wrapping the condition values with quotations to make them strings in Ruby. The end result should look something like this.

  if command == 'yes' || command == 'y'
    return true

I hope this helps.

I've still gotten an error in the syntax. its suppose to return true for the "y" & "yes" in all cases!