1. Why I love Ruby than X
by Samnang Chhhun
#DevCamp #ShareVisionTeam

2. Who Care?

3. Why Ruby?
• Java
• Ruby

4. What’s Ruby?
• Interpreted Scripting Language
• Ruby was first released on July 95 by a
Japanese nut (Yukihiro 'Matz' Matsumoto).
• An 100% OO language (well, 99.9%)
• Dynamically typed language
• Concise. Simple. Fun!
• Multi-platforms

5. Smalltalk
Perl
Lisp
Scheme
Python
CLU
Eiffel
Ada
Dylan

6. “Ruby is designed to make
programmers happy.”
Matz

7. Why Ruby?

8. Communities

9. Simplicity

12. Everything in Ruby is Object

13. Array

14. Hash

15. Range

16. Methods

17. Mixins

18. Duck Typing
If it walks like a duck,
And talks like a duck,
Then we can treat it like a duck.
(who cares what it really is)

19. Reflection

20. Monkey Patch
• Objects and classes are open
– Add method to object even at Runtime!
• Might be dangerous or break some stuff
– But it's awesome

21. Encourage testing
• Test::Unit builds in into standard libraries
• Other tools
– RSpec
– Cucumber
–…

22. DSL

24. Libraries in Ruby

26. It’s all about
Freedom

27. How to learn?
• irb (Interactive Ruby Shell)
• http://tryruby.org/
• http://rubylearning.com/

28. Question?
Thank you!