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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Working with $_GET and $_POST in PHP
This course will show you how to work with PHP Superglobals such as $GET and $POST while using a security-conscious mindset. External inputs, like HTML forms, are considered a security vulnerability so you should always filter inputs and escape outputs. Using PHP Superglobals when using external inputs such as HTML forms, cookies, sessions, and web servers will give you a security-conscious mindset that you can apply to all of your projects.
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Build a Basic PHP Website
This project will show you how to build a simple website using the PHP programming language. The web site, a media library, will let you organize and display your Books, Movies and Music. You could easily use this project to create a website that lets you organize and display any type of item: Branch Locations, Products, Services, Events, even Courses like we have here on Treehouse.
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Using SQL ORMs with Node.js
In this course, you'll learn how to use the Sequelize ORM to leverage the power of SQL within your Node.js applications.
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Introducing Dictionaries
Another useful Python data structure is the dictionary. Learn how to write one and use one in your day to day Python code.
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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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Conducting User Interviews
Learn how to validate new product ideas by identifying an audience, sourcing participants, conducting use interviews and analyzing the results.
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Typography for Designers
Typography is one of the most important aspects of good design. In this course, you'll learn all you need to know about creating good typography as a UX Designer: how to choose a typeface; what to look for when laying out type, how to create typographic hierarchy, laying out type, and creating responsive typography.
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11 minWorkshop
Solving Problems with UX Design
Product design is about solving problems. Learn how to identify problems, understand the difference between "needs" and "wants," and how to convert a problem statement into a hypothesis you can test by with user research.
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JavaScript Basics (Refresh)
JavaScript is a programming language that drives the web: from front-end user interface design, to backend server-side programming, you'll find JavaScript at every stage of a web site and web application. In this course, you'll learn the fundamental programming concepts and syntax of the JavaScript programming language.
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JavaScript Functions
JavaScript functions are a powerful tool that let you create reusable chunks of code. They make programming faster, easier and less error-prone. They are also one of the most important concepts in JavaScript programming.
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JavaScript Numbers
Numbers are everywhere in programming. You use them to track a player's score in a game, calculate the cost of shipping a product, or count the number of times a "Like" button gets clicked on a page. In this course, you'll learn how to use numbers for useful tasks in your JavaScript programs, including doing math, converting strings to numbers, generating random numbers, and more.
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Introduction to Design Systems
Learn how a scalable, repeatable design system leads to more efficient design. Learn the components of a design system, and how to work with existing documentation.