Introduction

To

Ruby

Content

• History
• What is Ruby?
• RVM, Ruby gems
• Syntax
• IRB
• Primitive Data Types
• Date & Time

History

• Syntactically Simple
• Truly Object-Oriented
• Having Iterators and Closures
• Exception Handling
• Automatic Memory Management
• Portable

Ruby was born in 1993, conceieved in a discussion between Yukihiro Matsumoto (“Matz”) and a colleague. Matz wanted a language perfect for his needs:

What is Ruby?

• General-purpose programming language
• Dynamic 
• Reflective 
• Everything is an object
• Expressive
• Supports parametric polymorphism
• Multi paradigm programming language

Ruby - Multi Paradigm

• Allows procedural programming (defining functions/variables outside classes makes them part of the root, 'self' Object)
• Object orientation (everything is an object) -
• Functional programming (it has anonymous functions, closures, and continuations; statements all have values, and functions return the last evaluation)

RVM & Gems

• What is RVM?
• Ruby Gems

Syntax and Conventions

• Case sensitive
• file name conventions
• methods
• variables
• constants
• classes

IRB

(Interactive Ruby)

It's a REPL(read–eval–print loop)

Primitive Data Types

• Strings
• Numbers (Rational, Complex)
• Boolean
• Nil
• Symbols
• Hash
• Array

Questions?

Thank You

References

• https://www.ruby-lang.org/en/
• https://en.wikipedia.org/wiki/Ruby_(programming_language)
• Bullet Three

Contact

• Skype id: dattdongare
• Mail id: datt@cart91.com
• Mobile: 7030122113