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Ruby Ruby Basics (Retired) Ruby Methods Method Returns: Part 2

James Matthews
James Matthews
21,610 Points
Posted by James Matthews
James Matthews
21,610 Points

Method Returns Part II Challenge?

What is the faults(s) in this code in the challenge? It's telling me to "return a nicely formatted string".

method.rb 
def mod(a, b)
  puts "Dividing #{a} by #{b}:" 
  return a % b
end

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi James,

You need to return a string that says, “The remainder of a divided by b is c.” where the variable values are inserted. For this you don't want to use the puts keyword as that outputs the string. You want to return it. First, though, you must calculate the value of c. You can either do that by creating a new variable (as I have done below) or you can just 'do the maths' inside the interpolation like #{a % b} - I prefer the new variable as it is clearer to me; personal preference.

def mod(a, b)
  c = a % b
  return "The remainder of #{a} divided by #{b} is #{c}."
end

You could omit the keyword return as Ruby returns the last evaluated line in a method. But I prefer it there; it makes it clearer. Again, personal preference.

I hope that helps.

Steve.