Tuesday, June 26, 2012

Curry in Ruby

While I was wandering around Proc and Lambda in Ruby, I found very useful method Proc#curry. This method answer the question that bugs me for a while, is there an easy way to make Curry happen in Ruby? Let look at the example how to use it.


Start with a simple method: Manually currying: But with Proc#curry, you can heavily simplify your code like this: Pretty neat!

Sunday, June 3, 2012

Benefits of TDD

I just read a blog post about TDD and really like it, TDD for Those Who Don't Need It. It reminds me to my first impression when I start practicing TDD more than a year ago, it allows us to not have to to hold everything in our head.

By the way, that post also mentions to other TDD benefits. I want to note it down here just for a reference.
  • Not have to hold everything on our head. Just follow errors.
  • Confidence to refactor
  • Better design
  • Documentation
  • Regression

Config number of file descriptors on Linux

Check file descriptor limit for a process. Vary depending on owner of the process $ cat /proc/{process-id}/limits Check current number of...