For [Code Block, Proc, Lambda, and Closure in Ruby]()

pass_a_proc.rb

# Passing a proc into a method
def give_me_a_proc(pr)
  puts 'Before call the proc'
  pr.call
  puts 'After calling the proc'
end

noisy_proc = proc { puts 'Noisy' }

give_me_a_proc(noisy_proc)

# The above code will print:
# Before call the proc
# Noisy
# After calling the proc