Ruby is a concise and readable programming language where everything is an object. It allows for terse yet readable code through features like optional semicolons and parentheses. Common tasks like working with arrays and hashes are easy in Ruby. The language also has tools and frameworks like Rails, RSpec, Rake, and Gems that make development fast and easy.

1. a bunch of reasons to love ruby

2. class Ben < Personis_a :mvp, :scrummaster, :aspinsider def initialize @book = “ASP.NET MVC in Action” @twitter = “subdigital” @blog= “http://flux88.com” @iphone_app= “Pocket Tabs” end ...end

3. def self.expert? falseend

4. Meet Rubyputs“hello world”hello worldputs“hello world”.reversedlrowollehputs“hello world”[0..5] hello

5. Ruby Variablesnum = 323message = “Hey there”stuff = [1, “foo”, true]

6. Ruby Loops[“cat”, “dog”, “giraffe”].each do |s| puts send[“cat”, “dog”, “giraffe”].each { |s| puts s }

7. Working with Arraysanimals = [“zebra”, “donkey”, “lemur”]animals.sort[“donkey”, “lemur”, “zebra”] # original array is untouchedanimals.sort!# original array is modified!animals.delete“zebra” [“donkey”, “lemur”]

8. Ruby has Less Ceremony//C#Dictionary<string, object> hash = new Dictionary<string, object>();#rubyhash = {}#optional semicolons & parenthesesadd(5, 6); is the same as add 5, 6

9. You Can Extend Existing classes5.days.from_now

10. Ruby is Terse, yet Readable3.times { print “Ho ” } => Ho Ho Hoapprove_credit unless account.deliquent?send_email if email_enabled?

11. Regex is a 1st class citizen[“red”, “blue”, “green”].grep /u/ blue“The Times They are a-Changin’”.gsub /\s/, “.”The.Times.They.are.a-Changin’

12. Everything is an Object42.class FixNum42.2.class.superclass  Integer42.class.superclass.superclass  Numeric42.class.superclass.superclass.superclass  ObjectNo, really… everything is an objectputs customer.name unless customer.nil?nil.classNilClassnil.class.superclass Object

13. RubyGemsgem installhpricot

14. Speaking of hpricot…require ‘rubygems’require ‘hpricot’require ‘open-uri’uri = open(“http://whatsit.org”)doc = Hpricot(uri)(doc/"p/a/img").each do |img| puts img.attributes['class']end

15. Raketask :codeGen do # do the code generationendtask :compile => :codeGen do #do the compilationendtask :dataLoad => :codeGen do # load the test dataendtask :test => [:compile, :dataLoad] do # run the testsend

16. RSpec# bowling_spec.rbrequire 'bowling'describe Bowling do it "should score 0 for gutter game" do bowling = Bowling.new 20.times { bowling.hit 0 }bowling.score.should == 0 endend

17. …and now the elephant in the roomrails

18. Rails is the bee’s knees because…convention configuration

19. Rails is the bee’s knees because…it hasActiveRecord

20. Rails is the bee’s knees because…it hasMigrations

21. Rails is the bee’s knees because…it has theConsole

22. Rails is the bee’s knees because…scaffolding

23. Rails is the bee’s knees because…Logging is built-in

24. Rails is the bee’s knees because…Tests come out of the box

25. Rails is the bee’s knees because…There is ONE WAY

26. What else?heroku

27. What else?IronRuby

28. thank_you