calculator.txt

# 1. Define a method called 'calculate'
# 1a. this method takes 3 parameters, first_number, second_number and the operator
def calculate(first_number, second_number, operator)
  # 2. Inside of this method, check which operation the user chose
  case operator
  when "+" then return first_number + second_number
  when "-" then return first_number - second_number
  when "*" then return first_number * second_number
  when "/" then return first_number.to_f / second_number
  else
    return nil
  end
  # 3. Perform the correct calculation and then return the result
end


# #          "helicopter"
# def method(parameter)
#   #                 "helicopter"
#   puts "This is a #{parameter}"
# end

# helicotper = "helicopter"
# method(helicotper)