Ruby

What is Ruby?

Ruby is a dynamically typed, interpreted, general-purpose scripting language created in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan. Its defining trait is a design philosophy Matz has described as optimizing for "programmer happiness" — Ruby consistently favors readable, expressive syntax over rigid formality, and treats every single value in the language, right down to a plain integer, as a real object with its own methods.

Ruby became a global phenomenon largely through Ruby on Rails, a web application framework released in 2004 that popularized "convention over configuration" and became one of the most influential web frameworks of the 2000s. Beyond web development, Ruby also shows up in scripting, automation, and — through smaller, embeddable implementations — some game development contexts.

Where is Ruby Used?

Ruby's biggest footprint is web development, but its readable, flexible design has carried it into several other areas too:

Real-World Examples

Here are some practical applications you can build using Ruby:

Why Learn Ruby?

Code Example

Here is a small taste of what Ruby looks like — a class with a block-based iteration, the kind of expressive, readable code you'll write constantly once Ruby's style clicks:

class Student
  attr_accessor :name, :marks

  def initialize(name, marks)
    @name = name
    @marks = marks
  end

  def grade
    case marks
    when 60.. then "First Class"
    when 50...60 then "Second Class"
    else "Pass"
    end
  end
end

students = [Student.new("Rahul", 78.5), Student.new("Priya", 55)]

students.each do |student|
  puts "#{student.name} scored #{student.marks} — #{student.grade}"
end

Course Curriculum

Follow these 12 lessons sequentially to build a solid, practical understanding of Ruby.

Frequently Asked Questions

Key Takeaways & Summary