Tutorial Series

How To Code in Ruby

How To Code in Ruby

Introduction

Ruby is a popular object-oriented programming language. You can use Ruby to write anything from simple scripts to complex web applications. Open your favorite text editor and follow these tutorials to start exploring Ruby.

Summary View
detailed View

Series Tutorials

Tutorial

Ruby on Rails is one of the most popular application stacks for developers looking to create sites and web apps. Using rbenv will provide you with a solid environment for developing your Ruby on Rails applications as it will let you easily switch Ruby versions, keeping your entire team on the same version. In this tutorial, we will guide you through the Ruby and Rails installation processes with rbenv and gem.

Tutorial

How To Write Your First Ruby Program

Updated on January 26, 2023

The “Hello, World!” program is a classic and time-honored tradition in computer programming. It’s a simple and complete first program for beginners, and it’s a good way to make sure your environment is properly configured. This tutorial will walk you through creating this program in Ruby.

Tutorial

How To Use IRB to Explore Ruby

Updated on January 26, 2023

IRB, short for Interactive Ruby, is a REPL (read-eval-print loop) which serves as a quick way to explore the Ruby programming language and try out code without creating a file. In this tutorial, you’ll use IRB to run some code, inspect its output, bring in external libraries, and customize your IRB session.

Tutorial

How To Use Comments in Ruby

Updated on January 26, 2023

Comments are lines in computer programs that are ignored by compilers and interpreters. You can use comments to make your programs easier for other programmers to understand by providing more context or explanation what each part of a program is doing. In this tutorial, we will look at how to use comments in Ruby programs to leave notes, as well as how to use them as a debugging tool.

Tutorial

Understanding Data Types in Ruby

Updated on January 26, 2023

In this tutorial, you’ll learn about the most important data types native to Ruby: integers, floats, strings, symbols, arrays, and hashes. This is not an exhaustive investigation of data types, but it will help you become familiar with the options you have available to you in your programs.

Tutorial

How To Work with Strings in Ruby

Updated on January 26, 2023

A string is a sequence of one or more characters that may consist of letters, numbers, or symbols. In this tutorial, you’ll learn how to work with strings in Ruby. You’ll create strings, display them on the screen, store them in variables, join multiple strings together, and learn how to handle special characters such as newlines, apostrophes, and double quotes.

Tutorial

How To Work with String Methods in Ruby

Updated on January 26, 2023

Ruby strings have many built-in methods that make it easy to modify and manipulate text, a common task in many programs. In this tutorial, you’ll use string methods to determine the length of a string, index and split strings to extract substrings, add and remove whitespace and other characters, change the case of characters in strings, and find and replace text. When you’re done, you’ll be able to incorporate these methods into your own programs.

Tutorial

How To Work with Arrays in Ruby

Updated on January 26, 2023

An array is a data structure that represents a list of values, called elements. Arrays let you store multiple values in a single variable. This can condense and organize your code, making it more readable and maintainable. In this tutorial, you’ll create arrays, access the values they contain, add, modify, and remove elements in an array, and iterate through the elements in an array to solve more complex problems.

Tutorial

How To Use Array Methods in Ruby

Updated on January 26, 2023

Arrays let you represent lists of data in your programs. Once you have data in an array, you can sort it, remove duplicates, reverse its order, extract sections of the array, or search through arrays for specific data. You can also convert an array to a string, transform one array of data into another, and roll up an array into a single value. In this tutorial, you’ll explore some of the most practical methods Ruby provides for working with data stored in arrays.

Tutorial

How To Convert Data Types in Ruby

Updated on January 26, 2023

Ruby provides several methods for converting values from one data type to another. In this tutorial, you’ll convert strings to numbers, objects to strings, strings to arrays, and convert between strings and symbols.

Check out all our Tutorial Series

Try DigitalOcean for free

Click below to sign up and get $200 of credit to try our products over 60 days!

Sign up

Featured on Community

Get our biweekly newsletter

Sign up for Infrastructure as a Newsletter.

Hollie's Hub for Good

Working on improving health and education, reducing inequality, and spurring economic growth? We'd like to help.

Become a contributor

Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.

Welcome to the developer cloud

DigitalOcean makes it simple to launch in the cloud and scale up as you grow — whether you're running one virtual machine or ten thousand.

Learn more