1.upto(10) do |x| 
  puts x
  break if x == 3
end

1
2
3

1
2
3

block = Proc.new do |x|
  puts x
  break if x == 3
  puts x + 2
end
block.call(5)

5
7

5
7

block.call(3)

3
LocalJumpError: break from proc-closure
...

3
LocalJumpError: break from proc-closure
	from (irb):7:in `call'
	from (irb):11

def find(*paths)
  paths.each do |p|
    catch(:prune) do     
      #Process p as a file or directory...
    end
    # When you call Fine.prune you'll end up here.
  end
end
def prune
  throw :prune
end