Tic Toc And IRB

My co-worker, Sam Goldman, a while back showed me this useful little IRB trick in order to get out how long a method takes. I used it pretty heavily recently with doing a call that hits the network.

It’s really easy to set up, just add the following to your .irbrc file.

~/.irbrc

def tic
  @tic = Time.now
end

def toc
  "#{Time.now - @tic} seconds"
end

Once that’s set up you can call it surrouding the method you want to time.

irb(main):003:0> tic; puts "Hello"; toc
Hello
#=> "3.0686e-05 seconds"
irb(main):004:0> tic; sleep 2; toc
#=> "2.000082375 seconds"

It’s also in my dotfiles repo on github.

Eric Oestrich

Tic Toc And IRB

~/.irbrc