Learn How to Code
  • Welcome
  • Foundations
    • Introduction
      • Becoming a web developer
      • Motivation and mindset
      • Join a supportive community
      • How does the web work?
    • Requirements
      • Prerequisites
      • Text editors
      • Command line basics
      • Setting up Git
      • Setting up Node
    • Git
      • Git basics
      • Project: Practicing Git
    • Frontend
      • HTML and CSS
      • Developer Tools
      • Project: Create a web page
    • JavaScript
      • Strings and Conditionals
      • Using Developer Tools
      • Functions
      • Problem solving
      • Project: Rock paper scissors
      • Writing clean code
      • Arrays and Loops
      • The DOM
      • Project: Etch-A-Sketch
      • Objects and More Arrays
      • Project: Calculator
    • Backend
      • Frameworks
    • Next steps
  • Deep dives
    • Computer Science
      • Pseudocode and algorithms
      • Recursion and algorithms
        • Project: Fibs and sorting
        • More on algorithms
        • Big O
        • Project: Practicing Big O
      • Data structures
        • Maps, Stacks and Queues
        • Project: Stacks and Queues
        • Nodes, Linked Lists and Trees
        • Project: Linked Lists
        • Project: Trees
        • Next steps
    • Databases
      • Databases and SQL
      • Project: SQL Zoo
    • Design / UX
      • Fonts and typography
      • Grids
      • Project: Teardown
      • Responsive design
      • Project: Mobile friendly
      • CSS frameworks
      • Project: Bootstrapping
    • HTML / CSS
      • HTML Basics
        • Linking
        • Images and media
        • Project: Embedding media
        • HTML5
        • Tables
        • Lists
        • Forms
        • Project: Make a form
      • CSS Basics
        • Box model
        • Floats and positioning
        • Flexbox
        • Grids
        • Project: Breaking news
        • Best practices
        • Backgrounds and gradients
        • Project: One more thing
        • CSS3
        • Preprocessors
        • Project: Your own framework
      • Next steps
    • JavaScript
      • Refresher
      • Organization
      • Objects and constructors
      • Project: Library
      • Factory functions and module patterns
      • Project: Tic Tac Toe
      • Classes
      • ES6 Modules
      • Project: Restaurant
      • Object Oriented Programming
      • Project: Todo list
      • Linting
      • Menus and sliders
      • Forms
      • ES6 features
      • JSON
      • Callbacks and promises
      • Using APIs
      • Async and Await
      • Project: Weather
      • Testing
      • Project: Testing 1-2-3
      • Advanced Testing
      • Project: Battleship
      • Backends
      • Project: Where's Waldo?
      • Project: All-Star
      • Next steps
    • NodeJS
      • Project: Going to school
      • Project: Passing the test
      • Express
        • Templates and middleware
        • CRUD and MVC
        • Project: Message board
        • Routes
        • Displaying data
        • Forms and deployment
        • Project: Inventory
      • Authentication
      • Security
      • Project: Clubhouse
      • APIs
      • Securing an API
      • Project: Blog
      • Testing
      • Testing with a database
      • Project: Social network
    • React
      • Props and State
      • Render lists and handle inputs
      • Project: CV
      • Lifecycle methods
      • Hooks
      • Project: Memory card
      • Router
      • Project: Shopping cart
      • Advanced concepts
    • Ruby
      • Installation
      • Data types
      • Variables
      • Input and Output
      • Conditionals
      • Loops
      • Arrays
      • Hashes
      • Methods
      • Enumerables
      • More enumerables
      • Nested collections
      • Blocks
      • Pattern matching
      • Debugging
      • Project: Caesar cipher
      • Project: Substrings
      • Project: Stock picker
      • Project: Bubble sort
      • Object oriented programming
      • Project: Tic Tac Toe
      • Project: Mastermind
      • Serialization
      • Project: Event manager
      • Project: Hangman
      • Computer Science
        • Recursion
        • Project: Merge Sort
        • Data structures and algorithms
        • Project: Linked Lists
        • Project: Binary Search Trees
        • Project: Knight Travails
      • Testing
      • RSpec
      • Project: Four in a row
      • Git
      • Project: Open Source
      • Project: Chess
      • Next steps
    • Ruby on Rails
      • Using Heroku
      • Installing Rails
      • Basics
        • Routing
        • Controllers
        • Views
        • Asset pipeline
        • Deployment
        • Project: Blog
      • Active Record
        • Project: Upvote
      • Forms
        • Cookies, sessions, and authentication
        • Project: Password
      • Advanced forms and Active Record
        • Associations
        • Project: Private Events
        • Callbacks
        • Menus, helpers and nested forms
        • Project: Ticket agent
      • APIs
        • External APIs
        • Project: Animals
        • Project: Photo widget
      • Mailers
        • Project: Confirmation
      • Advanced topics
        • Action Cable
      • Project: Social network
      • Next steps
  • Getting hired
    • Preparing to find a job
      • Plan a strategy
      • What companies want
      • Get yourself together
      • How to prepare
      • Project: Make your website
    • Applying and interviewing
      • Qualifying leads
      • Project: Make your resume
      • Applying for jobs
      • Preparing for an interview
      • Handling an offer
      • Final words
  • Maintained by
    • wbnns
  • License
    • CC BY-NC-SA 4.0 © 2022
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On this page
  • Getting started
  • Acknowledgments and special thanks

Welcome

This website is a free resource with everything you need to get started or level up as a web developer.

NextIntroduction

Last updated 3 years ago

Getting started

Content is divided into many sections to help you learn how to code or to become a better developer. Stick to this material, teach yourself to fish, and feed yourself for a lifetime.

Those who dream by night in the dusty recesses of their minds wake in the day to find that all was vanity; but the dreamers of the day are dangerous, for they may act their dream with open eyes, and make it possible. T. E. Lawrence

What would you do if self-doubt was the only thing that could stop you?

Start with the "Introduction" and begin your course!

Acknowledgments and special thanks

Many special thanks, credit and acknowledgment goes to who originally spearheaded the , an open curriculum for learning web development, that this ebook is based on. He used it to found . People all over the world have used it to learn how to code!

Much recognition is also due to all of the collaborators, contributors and volunteers who have over the years expanded and improved this curriculum.

Without these people, this site would not exist. 🙏

Introduction
Erik Trautman
assembly of the material
The Odin Project