1. Ruby

2. Who am I? 1- Bunlong Van 2- Sreyleap Lay, 3- Chhon Meily Work @yoolk Blog: https://wowcode.wordpress.com/https://wowcode.wordpress.com/ Email: bunlong.van@gmail.com

3. History - Ruby was conceived on February 24, 1993 by Yukihiro Matsumoto who wishedYukihiro Matsumoto to create a new language that balanced functional programming withfunctional programming imperative programming.imperative programming -purpose of Ruby language help every programmer in the world to be productive, and to enjoy programming, and to be happy

4. - Ruby is a dynamic, reflective, general-purpose object-oriented programming language that combines syntax inspired by Perl with Smalltalk-like features. - Interpreted Script Language - Ruby was first designed and developed in the mid-1990s by Yukihiro ‘Matz’ Matsumoto in Japan. - The standard 1.8.7 implementation is written in C. What is Ruby?

5. Java public class HelloWorld { public static void main(String args[]) { System.out.println(“Hello World”); } Ruby puts “Hellow World” Good point of Ruby Reduce code

6. Communities Code is Human-Readable: The code was designed from the start to be human- readable and this means that non-programmer can have a very easy to understand what a program is designed to do. Ruby on Rails: A Model-View-Controller framework for creating database-driven websites in Ruby. Rails is build on simple concepts. (http://guides.rubyonrails.org/)

7. RubyGems: A package manager for the Ruby programming language that provides a standard format for distributing Ruby programs and libraries (in a self- contained format called a “gem”), a tool designed to easily manage the installation of gems, and a server for distributing them. (http://rubygems.org/)http://rubygems.org/ Command-line: The interactive Ruby shell is a unique feature that allows developers to maintain and experiment with commands. There is no need to write webpages and check their functionality in a browser. Object-Oriented-Programming (OOP): Object-Oriented-Programming is a necessity for clean and maintainable code. However, In Ruby, everything is an object. Ex: 5.class #=> Fixnum “Ruby” #=>.class String nil.class #=> NilClass Fixnum.class #=> Class

8. Ruby is free Encourage testing - Test::Unit builds in into standard library - Other tools: Rspec, … Ruby online resources: - Try Ruby - http://tryruby.orghttp://tryruby.org - Hackety Hack - http://hackety.com/http://hackety.com/ - Ruby Monk – http://rubymonk.com/http://rubymonk.com/ - New Boston Videos - http://thenewboston.org/list.php?cat=50http://thenewboston.org/list.php?cat=50 - Ruby Notes - http://rubylearning.com/satishtalim/tutorial.htmlhttp://rubylearning.com/satishtalim/tutorial.html - Ruby Documentation - http://www.ruby-lang.org/en/ & http://ruby-doc.org/http://www.ruby-lang.org/en/http://ruby-doc.org/ - Ruby Conference Videos - http://confreaks.com/eventshttp://confreaks.com/events - Ruby Koans - http://koans.heroku.com/http://koans.heroku.com/ - Ruby Regex – http://rubular.com/http://rubular.com/ - Ruby Online Quiz/ Exam - http://rexaminator.com/http://rexaminator.com/ - Nettuts+ Ruby for Newbies Sessions – http://net.tutsplus.com/sessions/ruby-for-newbiesttp://net.tutsplus.com/sessions/ruby-for-newbies