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

Posted by Jon Dolan
Jon Dolan
565 Points

Modifying the valid command

I think im super close. Using the && function

ruby.rb 
def valid_command?(command)
  if answer = (y) &&(yes) && (Y) && (YES)
    command = "true"
  end
end

1 Answer

Nathan Williams
seal-mask
.a{fill-rule:evenodd;}techdegree
Nathan Williams
Python Web Development Techdegree Student 6,851 Points
Nathan Williams
.a{fill-rule:evenodd;}techdegree
Nathan Williams
Python Web Development Techdegree Student 6,851 Points

Couple issues here, but you're close. You want to test for one of several conditions using the "or" (||) operator, and each condition is using the equality comparison operator "==" (note that you're missing an =, and doing assignment instead).

The answer they're looking for, based on the section you're in, is something like:

def valid_command?(command)
  if (command == 'y' || command == 'Y' || command == 'yes' || command == 'YES')
    true
  else
    false
  end
end

You could also kind of cheat a little by using a different method, like Array#include? shown below, but they're actually testing you on the above.

def valid_command?(command)
  %w( y Y yes YES ).include? command
end

Make sense?