Java Arrays (2025 Refresh) Course

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  2 hours Course

  Python for Kids

  | 104 students

  Learn the building blocks of the wonderful general purpose programming language Python.

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  • Python
  • Beginner
• • 1
  • 2
  • 3
  • 4
  3 hours Course

  CSS Basics

  | 14210 students

  In this course, we're going to learn the basics of CSS, one of the core technologies for designing and building websites and applications. No matter what kind of website or web application you want to build, you'll have to use CSS. If you haven't written much CSS, or even if you’ve never written CSS at all, don’t worry. That's what this course is for. We’ll start with basic CSS concepts, then gradually progress to more advanced topics and lessons.

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  • CSS
  • Beginner
• • 1
  • 2
  • 3
  • 4
  2 hours Course

  CSS Layout

  | 11124 students

  In this course, we're going to learn techniques for better control over our CSS layouts. We’ll cover how the CSS Box Model impacts the presentation of each HTML element, learn to control the position of each element onscreen, and even begin to adjust our layouts for different screen sizes and environments.

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  • CSS
  • Beginner
• • 1
  • 2
  • 3
  2 hours Course

  JavaScript and the DOM

  | 6121 students

  JavaScript lets you create interactive web pages which can respond to a user's actions. In this course, you'll learn how to bring web pages to life using the power of JavaScript.

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  • JavaScript
  • Beginner
• • 1
  • 2
  • 3
  2 hours Course

  SQL Basics

  | 51740 students

  In SQL Basics, we’ll take a look at what databases are and how you can retrieve information from them. Databases can store massive amounts of information to be retrieved at a later date. Databases act as the memory for dynamic web sites or mobile apps.

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  • Databases
  • Beginner
• • 1
  • 2
  • 3
  • 4
  68 min Course

  Node.js Basics

  | 1784 students

  In this course we will create two command line applications using the popular server-side JavaScript platform Node.js. We'll be creating an application to retrieve a student's Treehouse profile information and be working with a dictionary API to retrieve definitions of a given word.

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  • JavaScript
  • Intermediate
• • 1
  • 2
  • 3
  3 hours Course

  Introduction to Git

  | 18817 students

  Git is a version control system - it helps you manage the different versions of your project files, and helps keep your work safe. This course will show you how Git works, and how to upload your projects to GitHub.

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  • Dev Tools
  • Beginner
• • 1
  • 2
  • 3
  • 4
  • 5
  3 hours Course

  C# Basics

  | 8796 students

  C# is the most popular programming language in the Microsoft ecosystem of products. C# code is designed to run fast and to be easily maintainable. In C# Basics, we'll learn how to work with C# to write simple programs.

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  • C#
  • Beginner
• • 1
  29 min Course

  How to Give and Receive Feedback

  | 1304 students

  Learn why feedback is useful. You'll explore a simple process for providing feedback (both positive and constructive) in a way that will be well-received and motivate the right behavior. You'll also learn tips for receiving feedback effectively and putting it into action.

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  • Professional Growth
  • Beginner

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Workshops

Technology-focused presentations of tips, tricks, and tutorials.

• 9 min Workshop

  JavaScript Search

  Letting users search through data in your application or website is a great UX feature. Building out this type of functionality isn't as hard as you may think. With some basic JavaScript, we can tackle the filtering and searching of data. Follow along as I add a search feature with vanilla JavaScript that allows the user to search for a specific author in a list of authors!

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  • JavaScript
  • Beginner
• 2 min Workshop

  Shorten Text With CSS

  Ever wondered how to shorten text with an ellipsis (...)? It’s quite easy to do and only requires a few lines of CSS. Follow along as I take you through setting this up!

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  • CSS
  • Beginner
• 3 min Workshop

  HTML-Only Accordion

  Accordions are all over the web and mobile apps. They are a great way to show and hide content based on user interaction and aren’t very hard to build. However, they usually require a bit of HTML, CSS, and JavaScript. Did you know you can build a simple accordion with only HTML in seconds? Follow along as I explain how to set this up!

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  • HTML
  • Beginner
• 8 min Workshop

  Full Stack JavaScript Techdegree Portfolio Overview

  Here at Treehouse, we have many Techdegrees to get you job ready no matter your skill level. The Full Stack JavaScript Techdegree is one of the most popular. Come take a look at all the professional-quality projects you'll build in this Techdegree!
  
  Start your free trial today! (https://trhou.se/3I1UNT3)
  
  Projects Random Quote Generator (https://teamtreehouse.com/library/introducing-the-random-quote-generator-2) Data Pagination and Filtering (https://teamtreehouse.com/library/introducing-the-data-pagination-and-filtering-project-2) Interactive Form (https://teamtreehouse.com/library/introducing-the-interactive-form-project-2) OOP Game Show App (https://teamtreehouse.com/library/introducing-the-oop-game-show-app-2) Public API Requests (https://teamtreehouse.com/library/introducing-the-api-requests-project-2) Static Node.js and Express Site (https://teamtreehouse.com/library/introducing-the-static-nodejs-and-express-site-project-2) React Gallery App (https://teamtreehouse.com/library/introducing-the-react-gallery-app-project-2) SQL Library Manager (https://teamtreehouse.com/library/introducing-the-sql-library-manager-project-2) REST API (https://teamtreehouse.com/library/introducing-the-rest-api-project-2) Full Stack App with React and a REST API (https://teamtreehouse.com/library/introducing-the-full-stack-app-with-react-and-a-rest-api-project-2)

  CheckmarkViewed
  • JavaScript
  • Beginner

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Practice

Refine and strengthen your skills with these practice exercises.

• practiceIcon Copy 5 Created with Sketch.
  • 1
  19 min Practice

  Practice Classes in JavaScript

  | 5558 students

  Practice building and working with classes in JavaScript.

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  • JavaScript
  • Intermediate
• practiceIcon Copy 5 Created with Sketch. 11 min Practice

  Practice Setting Up a Python Project

  Practice setting up a Python project locally and on GitHub.

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  • Python
  • Intermediate
• practiceIcon Copy 5 Created with Sketch. 11 min Practice

  Practice Hooks in React

  Practice React's built-in useContext and useState Hooks to update an app with user authentication.

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  • JavaScript
  • Intermediate

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Conferences

Watch talks from influential industry leaders.

• 12 hours Conference

  Treehouse Festival December 2020

  Treehouse Festival is an online conference designed for Treehouse students and all aspiring developers and designers. The presentations will empower those that attend with skills and a network to transition to a tech career or level-up in their current roles. Sessions include “Designing with a Developer Mindset,” “Computer Science, Emulation, and the NES,” “Interview with a Treehouse Grad”, and more!

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  • HTML
• 14 hours Conference

  Treehouse Festival June 2021

  Treehouse Festival is an online conference designed for Treehouse students and all aspiring developers and designers. The presentations will empower those that attend with skills and a network to transition to a tech career or level-up in their current roles. Sessions include “Designing with a Developer Mindset,” “Computer Science, Emulation, and the NES,” “Interview with a Treehouse Grad”, and more!

  CheckmarkViewed
  • HTML
• 12 hours Conference

  Treehouse Festival July 2020

  Treehouse Festival 2020

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  • HTML

View all 26

Bonus Series

Bonus material is exclusive to Courses Plus membership and includes series covering new processes in design, development and illustration.

• 9 min Bonus Series

  Takeaways

  Got some time during your lunch break? Want to get something to takeaway?

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  • Java
• 3 hours Bonus Series

  Treehouse Live

  Enjoy our full collection of Treehouse Live sessions with our amazing Treehouse Instructors! Follow along as they teach live and take questions from students like you.

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  • Learning Resources
• 6 hours Bonus Series

  Treehouse Guest Speaker Series

  Treehouse Guest Speaker Series is an ongoing live event hosted by Treehouse staff. In this series experts working in the field offer advice on how to transition into tech. Want advice on how to nail a technical interview? Need to stand out to tech recruiters? Have the desire to improve your practical skills? This is the series for you!

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  • Computer Science
• 21 min Bonus Series

  How to Learn

  Learning can be challenging. But having the proper mindset and a good set of strategies for studying and practice can help you learn faster and better. In this series of videos learn helpful techniques to boost your learning, and discover what the latest scientific research has to tell us about how to learn.

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  • Learning Resources

Upcoming Releases

The following items are scheduled to be released soon. You can also visit our content roadmap for more info.

• Course

  Java Arrays (2025 Refresh)

  | 0 students

  Arrays are a container object that allow you store many values of the same type in a single variable

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  • Java
  • August 2025
• Workshop

  Turn Your Passion into Profit with No-Code and AI

  Create an ecommerce app on Adalo and start turning your passion into profit!

  CheckmarkViewed
  • No-Code
  • September 2025

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