Ruby on Rails Introduction

Syntax

Ruby on Rails is a web application framework written in the Ruby programming language. The syntax for Ruby on Rails follows the object-oriented principles of Ruby.

Example

Here is a simple example of creating a "Hello, World!" application using Ruby on Rails.

# app/controllers/welcome_controller.rb
class WelcomeController < ApplicationController
  def index
    render plain: "Hello, World!"
  end
end

# config/routes.rb
Rails.application.routes.draw do
  root 'welcome#index'
end

Output

When running the above code, you should see "Hello, World!" displayed when accessing the root URL of the application.

Explanation

Ruby on Rails follows a specific architecture known as Model-View-Controller (MVC). The above code demonstrates creating a simple controller with the index method that renders plain text. The routes.rb file is responsible for mapping URLs to controller actions.

Use

Ruby on Rails is a popular web application framework for building dynamic, database-driven web applications. It provides a set of conventions and tools to simplify the development process.

Important Points

• Ruby on Rails follows the principles of Ruby, a object-oriented programming language.
• Ruby on Rails uses the Model-View-Controller (MVC) architecture.
• Rails provides a set of conventions to simplify web application development.

Summary

Ruby on Rails is a web application framework written in Ruby that follows the principles of object-oriented programming and uses the MVC architecture. It is a popular choice for web development due to its conventions and tools that simplify the development process.