CODEWITHSUNDEEP
ruby
Starkers
Starkers

Reputation: 10541

How do I return a variable from a Ruby method?

What's the best way to return the value of the 'hash' variable?

define_method :hash_count do 
  char_count = 0
  while char_count < 25 do 
    hash = ''
    hash << 'X'
    char_count += 1
  end
end

Upvotes: 0

Views: 314

Answers (1)

Mischa
Mischa

Reputation: 43298

You have to define hash outside the loop. If it's inside you keep resetting it on every iteration.

define_method :hash_count do 
  char_count = 0
  hash = ''
  while char_count < 25
    hash << 'X'
    char_count += 1
  end
  hash # returns the hash from the method
end

By the way, you don't have to keep track of the char_count. Just check the length of the string:

define_method :hash_count do 
  hash = ''
  hash << 'X' while hash.length < 25
  hash # returns the hash from the method
end

Upvotes: 1

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