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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Express Basics
Learn how to use Express.js to build dynamic websites on the Node.js platform. In the process, you'll learn some fundamental HTTP concepts that you can apply to any other framework!
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Introduction to Data Security
Keeping data and communications secure is one of the most important topics in development today. In this course, we'll look at common methods of protecting both of these areas.
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Extending Object-Oriented PHP
You should already be familiar with writing simple classes in PHP. In this course you will learn how extend the use of these classes to reuse code.
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Entity Framework with ASP.NET MVC
In Entity Framework Basics, you learned how to use Entity Framework to persist data to a database within the context of a console application. In this course, you'll learn how to use Entity Framework within the Comic Book Library Manager web app—a web application developed using the ASP.NET MVC web framework. You'll work on completing this web app so that users can create, update, and delete comic books from their digital library. Throughout this course you'll learn by example by completing hands-on coding exercises. See how to put EF related code into its own class library project, retrieve and persist data from within a web app, organize your data access code using popular design patterns, and more!
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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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Build A Selfie App
In this course we're going to build an app that is quite popular these days - a selfie app! We'll learn how to build and apply filters, how to use Core Data for more than just a single entity and how to use the device's camera to create a fun app!
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Go Language Overview
This overview of the Go programming language is designed for developers who are already familiar with another language. It's a quick tour of the language's core features such as interfaces and goroutines.
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Markdown Basics
Learn the basics of Markdown—a simple, text-to-html tool used to format writing on the Web. It's used to write blogs, forum posts, technical documentation, and more. Whether you're having trouble formatting GitHub README files or want to learn about Markdown in general, this course is a great place to start.
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Introduction to Core Data
Saving data on your device is a fundamental part of building apps and in this course we're going to learn how to use the Core Data framework to persist data between launches by building a simple to-do list app. We'll also learn how to utilize table views to display, edit and delete data by communicating with Core Data.
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Build an Image Viewer
In this course, we're going to build an image viewer that allows a user to thumb through an album of images, select one and then perform the usual operations like pinching, zooming and so on. In doing so we'll develop and understanding of Scroll Views in iOS and how to implement paging.
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HTML Basics
Learn how to write the language common to every website: HTML (HyperText Markup Language). HTML describes the basic structure and content of a web page. If you want to build a website or web application, you'll need to know HTML.
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Introducing JavaScript
Learn the fundamentals of programming by building a JavaScript video game. This fun, exploratory course teaches you basic concepts like variables, values, conditional statements and functions by interactively playing with code while creating a game.
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Data Visualization with Excel
This overview of Data Visualization in Excel is designed for absolute beginners, but can also benefit people who have already been using Excel to create charts. You will learn about the fundamentals of data visualization, how create types of charts in Excel, and tips on how to get the most of the charts you make.
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Debugging CSS with Chrome DevTools
In this workshop, we'll explore the most useful and efficient tool for debugging CSS: the Chrome Developer Tools.
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Regular Expressions in JavaScript
Learn how regular expressions can help you validate forms, search and replace in strings, and more. Regular expressions match patterns in strings. Pattern matching is a powerful tool programs can use to "understand" the text users type in.
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SQL Reporting by Example
In this course you'll get lots of practice writing SQL queries in a realistic environment!
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Build a Restaurant Reviews App
In this course we're going to build an app to read reviews on restaurants in our area using the Foursquare API. To do this we're going to learn about user authentication with OAuth, and writing networking code using protocols and generics. In addition you will learn how to display varying content in cells that adjust its size, use location and map based frameworks to display results and much more.
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Saving Data on a Server
So far all our networking code could do was make GET requests but being able to send and save data to a server is just as important. In this course, let's improve our networking code and learn how to make a POST request. There are a lot of additional concerns when saving data and we'll spend some time talking about security, preventing malicious input and much more.
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Unit Testing in iOS
Unit testing allows you to test your application for logic errors, prevent crashes, and even write better code. In this course, we cover the philosophy behind unit testing, ways we can structure our code to make it more testable and look at tools we can use to test our code. We'll look at both tools that come built in, like the XCTest Framework in Xcode, as well as a few third party solutions for both Objective-C and Swift.
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AWS with S3
Whether you're building a major web site, backing up vacation photos, or sharing large files with friends, Amazon's Simple Storage Service, S3, will come in handy. In this course, you'll learn the basics of setting up S3, creating buckets, and controlling file permissions.
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Python for File Systems
Python is a great language for the automated handling of files and directories. In this course, you'll learn how to navigate your file system with Python and create and manipulate files and directories. At the end, you'll build a project starter to make starting your Flask project just a little bit easier.
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Jupyter Notebooks
The Jupyter project has an amazing tool for Python, Julia, R, and other languages. Learn how to install Jupyter Notebooks, use them, and install kernels for other languages.
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Introduction to Big Data
Big data represents an entire ecosystem of data sets, tools, and applications. This course is intended to get you familiar with the concepts, problem spaces, and overall ecosystem of Big Data.
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Data Visualization with Bokeh
Learn how to use the Bokeh library to generate interactive charts, graphs, and other visualizations using Python. We'll explore a world population data set and see how to generate different charts using this powerful library.
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Callback Functions in JavaScript
Callback functions are a foundational concept in JavaScript. Callbacks are used in timers, user interaction events, loading data from a server and used in Node.js. Whether you're a budding front-end or back-end developer, callbacks are everywhere!
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.NET Core CLI Quick Start
In this quick start workshop, you'll learn how to use the .NET Core CLI to create a simple .NET Core console application.
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Entity Framework Query Performance
In this workshop, you'll learn how to audit Entity Framework queries and resolve common performance issues.
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