Ruby to_proc Example

gistfile1.rb

def say(a_proc_obj)
  a_proc_obj.call
end

def tell
  yield
end

a_lambda = -> { puts "there you go" }

# both will output "there you go"
say(a_lambda)
# ampersand implies Proc object. Ruby takes it from the parameter list and converts it into a block
tell(&a_lambda)