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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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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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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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 Yelp 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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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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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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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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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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.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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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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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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Introduction to React Native
React Native is a great option for creating performant iOS and Android applications that feel at home on their respective platforms, all while building on any previous web development experience. One of its greatest advantages is that it is written in Javascript and with that you can maximize code reuse between platforms. This course is going to go through the basics of React Native, Redux, third party API integration and the best ways to structure your React Native projects for success. In this course we will be building the ultimate superhero app. This app will let you build the superhero team of your dreams, well if you dream in Marvel that is. By the end of this course you should have the confidence to build upon the app that we started and take it to the next level.
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Introduction to Selenium
As web applications grow in size it becomes difficult to reliably and thoroughly verify that the application behaves as intended. Manually stepping through the system gets tedious and time consuming. That's where automated testing tools become invaluable. In this course we will learn to use Selenium Webdriver, one of the most popular utilities for automating interactions with web browsers, to build automated tests for the purpose of verifying and maintaining a quality application.
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Security Literacy
The internet is an invaluable resource for information and entertainment, but it doesn’t always protect your privacy and identity. This course offers an overview on how to stay safe and secure when using your browser and beyond. We’ll introduce foundational concepts about how online activity translates to internet traffic. We’ll then explore some common ways that attackers can view and manipulate this traffic for their uses and how to protect against them. And finally, we’ll establish some industry-recommended habits to keep you and your data secure.
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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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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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Designing Interfaces in PHP
An interface is a type of contract that assures that the enforces certain abilities are available on on a particular object class. We'll write interfaces that extend multiple interfaces, then implement them to design and match functionality.
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Build a Simple Android App with Java
This course covers the very basics of Android development. We will build a simple app that will serve up some fun facts when you tap on a button. We introduce you to programming in Android, a tool for Android development called Android Studio, and some very basic concepts of the Android Software Development Kit, or SDK. By the end you will have a good idea of how a basic app works, and you will be armed with the knowledge to start building more.
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Active Record Associations in Rails
Most of your Rails models are going to be connected to other models in some way. An Author has many Articles, and each Article belongs to an Author. A Doctor has many Patients, and a Patient may have many Doctors as well. Rails uses associations to make it easy to track these relationships in your database.
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CSS Grid Layout
CSS Grid Layout provides a built-in, more efficient way of designing grid-based layouts in the browser. It brings a new set of properties and flexible units that let you control the exact placement and sizing of grid components.
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Building Services with ASP.NET Web API
Services expose data and processes through APIs (Application Programming Interfaces) implemented using common approaches or standards. Decoupling our back-end from our front-end makes it possible for our services to support multiple client apps. We can even allow other developers and organizations to consume and use our services to further broaden the reach of our applications. In this course, you'll learn how to use the ASP.NET Web API framework to build a RESTful service or HTTP API. As you learn about Web API, you'll create a service for the Fitness Frog single-page web app (SPA) developed using Angular.
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jQuery Basics (2017)
jQuery Basics covers why you'd want to use jQuery, what it is and how to include it in your projects. You'll build several projects over the course to give you the confidence to integrate jQuery in your own projects and add that level of flair and interactivity to any site you work on.
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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.