Ruby/Statement/catch

catch(:finish) do
  1000.times do
    x = rand(1000)
    throw :finish if x == 123
  end
  puts "Generated 1000 random numbers without generating 123!"
end

# throw works from methods called from within a catch block:
def generate_random_number_except_123
  x = rand(1000)
  throw :finish if x == 123
end
catch(:finish) do
  1000.times { generate_random_number_except_123 }
  puts "Generated 1000 random numbers without generating 123!"
end