ruby return inner loop value to outer loop -

how return value inner loop .map of outer loop, example:

class letternumber   def initialize(letter, number)     @letter = letter     @number = number   end end  do_stuff   letter_numbers = // array of letternumber objects   numbers = [1, 2, 3]    letter_numbers.map |letter_number|     numbers.each |number|       letter_number.number = letter_number.number + number     end   end end 

i want do_stuff method return array of updated letternumber objects. want inner loop return letter_number object on each of iterations outer loop. possible sort of iterator instead of breaking loops out separate methods or something?

you can use inject method calculate sum directly:

class letternumber   def initialize(letter, number)     @letter = letter     @number = number   end end  def do_stuff   letter_numbers = // array of letternumber objects   numbers = [1, 2, 3]    letter_numbers.map |letter_number|     letter.number += numbers.inject(:+)     letter_number   end end 

or use each_with_object return letter_number after loop.

def do_stuff   letter_numbers = // array of letternumber objects   numbers = [1, 2, 3]    letter_numbers.map |letter_number|     numbers.each_with_object(letter_number) |number|       letter_number.number = letter_number.number + number     end   end end