Methods

Methods name reusable work and return a value to the caller.

methods.rb

def square(value)
  value * value
end

side = 
area = square(side)

puts "side=#{side}"
puts "area=#{area}"

def square(value)
  value * value
end

side = 
area = square(side)

puts "side=#{side}"
puts "area=#{area}"

def square(value)
  value * value
end

side = 
area = square(side)

puts "side=#{side}"
puts "area=#{area}"

method A method groups statements behind a name and can receive arguments.