Welcome to the Treehouse Library
This is a sample catalog of all the courses we offer. Browse by topic or difficulty. Sign up today and get access to our entire library. Treehouse students get access to workshops, bonus content, conferences, and more.
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Course
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Templating with Twig
Templating languages and tools are used with frameworks like Slim and Laravel to incorporate PHP and logic into static HTML web pages. In this course we will see how to apply Object-Oriented methodology to views (web pages with HTML).
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Course
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Java Lists
In this course we'll learn how to use Lists we to store groups of Objects. We'll also see when to use a List instead of an Array!
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Course
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Generics in Java
Learn how to pass type parameters to Objects or functions in this course on generics!
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Course
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Interfaces in Java
Learn how to make more robust and flexible code bases by using interfaces!
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Start Your Free TrialUpcoming Releases
The following items are scheduled to be released soon. You can also visit our content roadmap for more info.
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Course
Introduction to the Terminal
Apps for ordinary users use GUIs you control with a mouse or touchscreen. But developers know the most powerful way to interact with computers is using text, in the terminal. This course will set you on the path to terminal mastery!
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Course
Build a REST API with Express (Refresh)
In this course, you'll learn how to build a REST API with Express, a popular framework written for Node.js.
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Practice
Practice Object Interaction
Get more familiar with building different classes, instantiating objects and having those objects interact with one another in a complete app.
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Course
CSS Selectors Quickstart
An introduction to CSS selectors for JavaScript programmers. This course covers what JavaScript developers need to know and understand about CSS selectors in order to complete common DOM programming tasks.
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Course
Asynchronous Programming with JavaScript
Learn asynchronous code flows using callbacks, promises, and async/await.
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Course
npm Basics (Refresh)
npm is a command line tool to help you manage Node.js modules, and this course will get you up and running with npm.