Ruby is a scripting language created in 1993 by Yukihiro "Matz" Matsumoto who wanted a language more powerful than Perl but more object-oriented than Python. It is an interpreted, high-level programming language where everything is an object, including classes, modules, methods, and more. Code samples show how to loop and print text in Ruby as well as its conventions for variables, classes, symbols, and more.

1. Ruby
Programmer’s Best Friend
D. Prabu
Ruby On Rails Developer,
Spritle Software.

2. History
01
0
2
03
Yukihiro “Matz” Matsumoto
February 24, 1993
Matz wanted a scripting language that was more
powerful than Perl, and more object-oriented than
Python. That's why he decided to design his own
language.
Perl Java Python Ruby PHP
1987 1991 1993 1995

3. Scripting Language
A high-level programming language that is interpreted by
another program at runtime rather than compiled by the
computer's processor as other programming languages
(such as C and C++) are. Scripting languages, which can
be embedded within HTML, commonly are used to add
functionality to a Web page.
JavaScript, ASP, JSP, PHP, Perl, Tcl and Python are
examples of scripting languages.

4. Code Sample
5.times { print “Ruby! " }

5. Code Sample
5.times { print “Ruby! " }
Ruby! Ruby! Ruby! Ruby! Ruby!

6. Conventions
Varialbes Class Variable
name_of_the_product @@current_client_id
Class Name
TeamParty
Symbols
:list_Of_items
Instance Variables
@current_client

7. Everything is an object
1.class # => Fixnum
'a'.class # => String
:a.class # => Symbol
class Record
end
Record.class # => Class
Record.new.class # => Record

8. Method, Class and Invocation
def do_work(task_ref)
task_ref.assigned_work
end
Class Task
def assigned_work
puts “Completed successfully.”
end
end
do_work(Task.new)
Method
Class
Invocation

9. THANKS
SPRITLE SOFTWARE

10. THANKS
SPRITLE SOFTWARE