Ruby - Ruby Programming Language

Syntax Overview

1x = 10

1def method_name(parameters) end

1class ClassName end

1# Single line or =begin Multi-line =end

Code Examples and Tutorials

Learning Ruby programming requires hands-on practice with real code examples. Below, you'll find comprehensive code samples that demonstrate fundamental concepts, common programming patterns, and practical implementations. Each example is carefully explained to help you understand not just what the code does, but why it's written that way and how you can adapt it for your own projects.

1puts "Hello, World!"

1age = 25
2price = 19.99
3name = "John"
4is_active = true
5numbers = [1, 2, 3, 4, 5]

1def add(a, b)
2    return a + b
3end
4
5result = add(5, 3)
6puts "Sum: #{result}"

1class Person
2    attr_accessor :name, :age
3    
4    def initialize(name, age)
5        @name = name
6        @age = age
7    end
8    
9    def display
10        puts "#{@name} is #{@age} years old"
11    end
12end
13
14person = Person.new("John", 25)
15person.display

1# For loop
2for i in 0..9
3    puts i
4end
5
6# Each loop
7numbers = [1, 2, 3, 4, 5]
8numbers.each do |num|
9    puts num
10end

1age = 18
2
3if age >= 18
4    puts "Adult"
5else
6    puts "Minor"
7end

Essential Ruby Commands and Methods

Understanding the essential commands and functions in Ruby is crucial for effective programming. This section provides detailed explanations of the most important commands, functions, and language features you'll use regularly when developing applications with Ruby. Each command is explained with its purpose, syntax, and practical usage examples to help you master the language quickly.

1puts "Hello"

1def my_method end

1class MyClass end

1require 'date'

1attr_accessor :name

1array.each do |item| end

Learning Ruby Programming

Common Use Cases

Ruby is widely used across various industries and application domains. Understanding where and how Ruby is typically used helps you make informed decisions about when to choose this language for your projects. Below are the most common use cases where Ruby excels, along with examples of real-world applications built with this powerful programming language.

Best Practices and Coding Standards

Following best practices is essential for writing professional, maintainable Ruby code. These guidelines have been developed by the programming community over years of experience and help ensure your code is readable, efficient, and follows industry standards. Adopting these practices early in your Ruby learning journey will make you a better developer and help you write code that others can easily understand and maintain.