Ruby

Who am I? 1- Bunlong Van 2- Sreyleap Lay, 3- Chhon Meily Blog:

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

- 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 implementation is written in C. What is Ruby?

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

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. (

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. ( 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

Ruby is free Encourage testing - Test::Unit builds in into standard library - Other tools: Rspec, … Ruby online resources: - Try Ruby Hackety Hack Ruby Monk – - New Boston Videos Ruby Notes Ruby Documentation - & - Ruby Conference Videos Ruby Koans Ruby Regex – - Ruby Online Quiz/ Exam Nettuts+ Ruby for Newbies Sessions –