Ruby/Method/return

def greeting()
  return "No", "worries"
end
array = greeting

number = 3
 
def incrementer(value)
  return value + 1
end
puts number.to_s + " + 1 = " + incrementer(number).to_s

def adder(operand_one, operand_two)
  return operand_one + operand_two
end
adder "Hello ", "Hello "

# Ruby uses arrays to return multiple values.
# To return multiple values, all you have to do is to separate them with a comma: return a, b, c
def greeting()
  return "No", "worries"
end
array = greeting
puts array.join(" ")

def find(array, target)
  array.each_with_index do |element,index|
    return index if (element == target)  # return from find
  end
  nil  # If we didn"t find the element, return nil
end

def double(x)
  return nil if x == nil   # Return prematurely
  return x, x.dup          # Return multiple values
end

def perimeter_of_square(side_length)
  side_length * 4
end
def area_of_square(side_length)
  side_length * side_length
end
def perimeter_of_triangle(side1, side2, side3)
  side1 + side2 + side3
end
def area_of_triangle(base_width, height)
  base_width * height / 2
end
 
puts area_of_triangle(6,6)
puts perimeter_of_square(5)

# All you have to do is to assign the return value of the called method to a comma-separated list of variables
def greeting()
  return "No", "worries"
end
word_one, word_two = greeting

def adder(operand_one, operand_two)
  operand_one + operand_two
end

  def say_goodnight(name)
    "Good night, #{name}"
  end
  puts say_goodnight("Ma")