# Ruby

## Basics

### Create a Ruby Script

Create a file named `hello.rb`

    puts "Hello!"
    
### Run a Ruby Script

    $ ruby hello.rb

### Start the Interactive Ruby Shell

    $ irb
    1.9.3-p194 :001 >

### Define a Method

    def hello
      puts "Hello!"
    end

### Call a Method

    hello

### Define a Method with Argument

    def hello(name)
      puts "Hello, #{name}!"
    end

### Call a Method with an Argument

    hello("Brian")

### Define a class

    class Person
    
    end
    
### Instantiate a class

    brian = Person.new
        
### Define a Class Initializer

    class Person
      def initialize
        puts "Initialize!"
      end
    end

### Define a Class Initializer with Arguments

    class Person
      def initialize(name)
        puts "Initializing '#{name}'"
      end
    end

### Instantiate a class using an initializer

    brian = Person.new("Brian")
    
### Define an instance method

    class Person
      def hello
        puts "Hello there!"
      end
    end
    
### Call an instance method

    brian = Person.new("Brian")
    brian.hello

### Define an Instance Variable

### Define Instance Variable Accessors

### Using Arrays

### Using Hashes

## Intermediate

### Extend a Class
    
    class Employee < Person
    
    end

### Re-opening Classes

### Define a Class Method

### Call a Class Method

### Blocks

### Symbols

### Define a Module

    module Hello
    
    end
    
### Define a Module Method

    module Hello
      def hello
        puts "Hello!"
      end
    end

### Call a Module Method

    Hello::hello

### Include a Module

    include Hello

### Include a module's methods in a class as instance methods

### Include a module's methods in a class as class methods

### Modules vs. Classes

### Ruby Load Path

### Require a Method or Class

## Ruby Gems

### Install a Gem

    $ gem install pry

## Ruby Version Manager

### Install RVM

### Install Ruby via RVM

## Bundler

### Install Bundler

### Define a project's Gems

### Install a projcet's Gems

## Testing

### RSpec

## Libraries

### Devise

### Guard

## Resources

### Language, Gems & Tools

- [Ruby Programming Language](http://www.ruby-lang.org/en/)
- [Ruby Gems](http://rubygems.org/)
- [Bundler](http://gembundler.com/)
- [Ruby Version Manager](https://rvm.io/)
- [Ruby on Rails](http://rubyonrails.org/)
- [The Ruby Toolbox](https://www.ruby-toolbox.com/)

### Documentation

- [Ruby-Doc.org](http://www.ruby-doc.org/)
- [RubyDoc.info](http://www.rubydoc.info/)
- [APIdock](http://apidock.com/)
- [Ruby on Rails API](http://api.rubyonrails.org/)
- [Rails Searchable API Doc](http://railsapi.com/)

### Instructional Sites

#### Ruby

- [Try Ruby](http://tryruby.org/)
- [Learn Ruby the Hard Way](http://ruby.learncodethehardway.org/book/)

#### Rails

- [Ruby on Rails Guides](http://guides.rubyonrails.org/)
- [RailsCasts](http://railscasts.com/)
- [Rails for Zombies](http://www.codeschool.com/courses/rails-for-zombies-redux)
- [Rails for Zombies 2](http://www.codeschool.com/courses/rails-for-zombies-2)
- [Rails Best Practices](http://www.codeschool.com/courses/rails-best-practices)
- [Testing with RSpec](http://www.codeschool.com/courses/testing-with-rspec)
- [PeepCode](https://peepcode.com/)
- [Ruby on Rails Tutorial](http://ruby.railstutorial.org/)

### Books

- [Programming Ruby 1.9](http://pragprog.com/book/ruby3/programming-ruby-1-9)
- [Agile Web Development with Rails](http://pragprog.com/book/rails4/agile-web-development-with-rails)
- [Metaprogramming Ruby](http://pragprog.com/book/ppmetr/metaprogramming-ruby)
- [Eloquent Ruby](http://eloquentruby.com/)
- [The Well-Grounded Rubyist](http://www.manning.com/black2/)