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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Introduction to QA Engineering
Learn how to become an effective test engineer. Testing is something every developer must do to write effective and quality code, but going about what you should test and how to do it can be a challenging question. Quality Assurance is the practice of monitoring other developers' work and creating processes and tests that will ensure the product meets the end user’s expectations and limiting the amount of bugs that are released. This course will teach you how to become a Software Quality Assurance Engineer.
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React Components
Components are the core building blocks of a React application. This course will level-up your React skills by providing a better understanding of class vs. functional components, state and lifecycle methods, and how to split your UI into reusable and composable components.
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Inheritance in Java
In this course we'll learn how to use inheritance to use one class as the foundation for another!
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React Basics
React is a JavaScript library for building user interfaces. React makes building and maintaining the user interface of your application faster and easier by breaking it up into smaller, reusable components. It also helps eliminate the complexity that comes with updating your DOM elements when the user interacts with your application.
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The following items are scheduled to be released soon. You can also visit our content roadmap for more info.
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Prototyping with Adobe XD
Adobe XD is a visual prototyping tool for PC and Mac. In this course, you'll learn how to use Adobe XD by building a mockup for a travel booking app. By the end, you'll be able to create interactive prototypes that can be shared with others.
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Evaluating Design
An essential part of the UX design process is measurement and validation. This course will provide an overview of the methods available for measuring the success of a design including A/B testing, surveys and usability testing. It will specifically deep dive into usability testing so that students will learn about what’s involved in running such a test, from gaining initial stakeholder buy-in to preparing a test plan and to presenting actionable findings.
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UX Content Strategy
With so many websites and apps offering similar content and features, you need to provide a unique experience to compete - something memorable and enjoyable that resonates with your users. UX Content is how it’s done. From your home page and product descriptions down to your error messages, UX content can turn generic interactions into memorable experiences. By establishing a unique voice and personality, you can create an environment that welcomes, supports, and inspires users during their visit. So in this course, we’ll discuss why UX Content is so important, where you need it, how to create it, and how to ensure it’s effective.
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Practice React Component Rendering
Sharpen your React skills by practicing JSX, creating and rendering components, passing down props, as well as iterating over data, and more.
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Introducing pandas
Pandas provides fast, flexible, and expressive data structures that have been designed to make working with relational or “labeled” data not only easy, but also intuitive. It’s the fundamental high-level building block for doing practical and real world data analysis in Python.
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Microframeworks in PHP
In this course we will build upon what we have learned about Object-Oriented Programming to build a basic website. By using the Slim Microframework, we will explore common MVC concepts without the framework hiding too much functionality out of the box.
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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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Git Branches and Merging
This course introduces the concept of branches in Git and shows practical uses for managing both local development and collaborative workflows.
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Cleaning and Preparing Data
We rely on data to answer important questions, whether we are trying to make the best business decisions or determine the effectiveness of a new medical treatment. But our analyses are only as accurate as the data we are using, and incorrect or “dirty” data can lead to incorrect conclusions and assumptions. Data preparation, also called “cleaning” or “scrubbing”, is an important part of ensuring our analyses are accurate and useful.
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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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Using SQL Databases with Node.js
In this course, you'll learn how to leverage the power of SQL databases within your Node.js applications.
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Organizing JavaScript with Modules
In this course, you'll learn how to organize JavaScript code using modules.