Achievement

Iteration

Java Arrays

Achievement

Bells and Whistles

Intro to Java Web Development with Spark

Achievement

Diving into Web Development

Intro to Java Web Development with Spark

Achievement

What to Test

Unit Testing in Java

Achievement

How To Test

Unit Testing in Java

Achievement

Why Test

Unit Testing in Java

Achievement

Exploring Async/Await

Asynchronous Programming with JavaScript

Achievement

Understanding Promises

Asynchronous Programming with JavaScript

Achievement

Maintaining Secure Web Apps

Introduction to Application Security

Achievement

Protecting Data and Keeping Attackers Out

Introduction to Application Security

Achievement

Asynchronous JavaScript with Callbacks

Asynchronous Programming with JavaScript

Achievement

What is Asynchronous Programming?

Asynchronous Programming with JavaScript

Achievement

Building a Flashcard App

Vue.js Basics

Achievement

Time Complexity

Introduction to Algorithms

Achievement

Merge Sort and Linked Lists

Introduction to Data Structures

Achievement

The Merge Sort Algorithm

Introduction to Data Structures

Achievement

Create a Web Presence on GitHub

GitHub Basics

Achievement

Working By Yourself

GitHub Basics

Achievement

Building a Linked List

Introduction to Data Structures

Achievement

Hello, GitHub!

GitHub Basics

Achievement

Exploring Arrays

Introduction to Data Structures

Achievement

Ruby Syntax

Ruby Basics

Achievement

Build a Grocery List Program

Ruby Collections

Achievement

Ruby Hashes

Ruby Collections

Achievement

Ruby Arrays

Ruby Collections

Achievement

Practice Creating Scaffolds

Practice Ruby on Rails Basics

Achievement

Angular Form Validation

Angular Basics

Achievement

Angular Basic Forms

Angular Basics

Achievement

Scrum Artifacts

Scrum Basics

Achievement

Scrum Events

Scrum Basics

Achievement

Introducing Scrum

Scrum Basics

Achievement

What is Agile?

Scrum Basics

Achievement

Introduction to PHP for WordPress

PHP for WordPress

Achievement

WordPress Plugins

WordPress Basics

Achievement

WordPress Themes

WordPress Basics

Achievement

The WordPress Customizer

WordPress Basics

Achievement

Managing Media in WordPress

WordPress Basics

Achievement

Managing Content in WordPress

WordPress Basics

Achievement

What Is WordPress?

What Is WordPress?

Achievement

Getting to Know REST APIs

REST APIs with Express

Achievement

Contact Forms & Mailers

Building Websites with PHP

Achievement

Slim and Templates

Building Websites with PHP

Achievement

Dependency Management

Building Websites with PHP

Achievement

Executing Tests

Introduction to QA Engineering

Achievement

Why We Test

Introduction to QA Engineering

Achievement

Access for Everybody

Web Accessibility Compliance

Achievement

Databases and International Concerns

PHP Standards and Best Practices

Achievement

Starting Right with PHP Best Practices

PHP Standards and Best Practices

Achievement

Creating Records

CRUD Operations with PHP

Achievement

Sharing a Website

How to Make a Website

Achievement

Project Setup

CRUD Operations with PHP

Achievement

Handling Errors When Manipulating Data

Modifying Data with SQL

Achievement

Deleting Data from a Database

Modifying Data with SQL

Achievement

Updating Data in a Database

Modifying Data with SQL

Achievement

Adding Data to a Database

Modifying Data with SQL

Achievement

Page Layout

Prototyping in the Browser

Achievement

Browser Persistent Data with PHP

Browser Persistent Data with PHP

Achievement

PHPDB Stage 5: Search

Integrating PHP with Databases

Achievement

PHPDB Stage 4: Pagination with LIMITs

Integrating PHP with Databases

Achievement

Captioning Video

HTML Video and Audio

Achievement

Set Operations

Querying Relational Databases

Achievement

Joining Table Data with SQL

Querying Relational Databases

Achievement

PHPDB Stage 2: Querying the Database with PHP

Integrating PHP with Databases

Achievement

Building a Collection

Object-Oriented PHP Basics

Achievement

Building the Recipe

Object-Oriented PHP Basics

Achievement

PHPDB Stage 1: Databases and PHP

Integrating PHP with Databases

Achievement

Table Relationships

Querying Relational Databases

Achievement

PHP Includes

Build a Basic PHP Website

Achievement

Date and Time Functions

Reporting with SQL

Achievement

Aggregate and Numeric Functions

Reporting with SQL

Achievement

Reformatting User Input

Regular Expressions in JavaScript

Achievement

Working with Text

Reporting with SQL

Achievement

Validating a Form with Regular Expressions

Regular Expressions in JavaScript

Achievement

Ordering, Limiting and Paging Results

Reporting with SQL

Achievement

Finding the Data You Want

SQL Basics

Achievement

Media Basics

HTML Video and Audio

Achievement

Database Keys

Querying Relational Databases

Achievement

Database Normalization

Querying Relational Databases

Achievement

Combining Array Methods

JavaScript Array Iteration Methods

Achievement

JavaScript Frameworks, Libraries, and Developer Roles

The JavaScript Ecosystem

Achievement

JavaScript Outside of the Browser

The JavaScript Ecosystem

Achievement

Pseudo-classes and Combinators

CSS Selectors Quickstart

Achievement

Important Skills For Professional Success

Soft Skills

Achievement

Improving Our Todo App

AngularJS Basics (1.x)

Achievement

Services in Angular

AngularJS Basics (1.x)

Achievement

Selector Basics

CSS Selectors Quickstart

Achievement

The Role of Selectors in JavaScript

CSS Selectors Quickstart

Achievement

Using Angular's Built-in Directives

AngularJS Basics (1.x)

Achievement

Controllers and Scope

AngularJS Basics (1.x)

Achievement

Getting Started with Angular

AngularJS Basics (1.x)

Achievement

Common Commands

Introduction to the Terminal

Achievement

Directories and Files

Introduction to the Terminal

Achievement

The Command Shell

Introduction to the Terminal

Achievement

Model Administration

Django Basics

Achievement

What a View

Django Basics

Achievement

Gettin' CRUD-y With It

Using Databases in Python

Achievement

Our Diary App

Using Databases in Python

Achievement

Getting Modular with Mixins and Functions

Modular CSS with Sass

Achievement

Say Hello to Django

Django Basics

Achievement

Cleaner Code

Write Better Python

Achievement

Be Assertive!

Python Testing

Achievement

What Is Testing?

Python Testing

Achievement

Dice Roller

Object-Oriented Python

Achievement

Python: Advanced Objects

Object-Oriented Python

Achievement

Array Manipulation

JavaScript Array Iteration Methods

Achievement

Exploration

Web Design Process

Achievement

Going Further with Grid Layout

CSS Grid Layout

Achievement

Python: Inheritance

Object-Oriented Python

Achievement

Python: Instant Objects

Object-Oriented Python

Achievement

Adding 3D Effects with CSS

CSS Transitions and Transforms

Achievement

Getting Started with CSS Transforms

CSS Transitions and Transforms

Achievement

Getting Data from a Database

SQL Basics

Achievement

Transition Timing Functions and Delays

CSS Transitions and Transforms

Achievement

Getting Started with CSS Transitions

CSS Transitions and Transforms

Achievement

Data, Databases and SQL

SQL Basics

Achievement

Bug Reporting

Introduction to QA Engineering

Achievement

Writing Manual Test Cases

Introduction to QA Engineering

Achievement

Python Sets

Python Collections

Achievement

Python Tuples

Python Collections

Achievement

Python Dictionaries

Python Collections

Achievement

Python Slices

Python Collections

Achievement

Python Lists

Python Collections

Achievement

Build an Application

Introducing Lists

Achievement

Merging

Git Branches and Merging

Achievement

Using Lists

Introducing Lists

Achievement

Meet Lists

Introducing Lists

Achievement

Practice Functions

Practice Creating and Using Functions in Python

Achievement

All Together Now

Python Basics

Achievement

Functions and Looping

Python Basics

Achievement

Types and Branching

Python Basics

Achievement

Meet Python

Python Basics

Achievement

Structuring Tables

HTML Tables

Achievement

Flexible Sized Grids

CSS Grid Layout

Achievement

Art Direction with the Picture Element

Responsive Images

Achievement

Treehouse Club - CSS

Treehouse Club: CSS

Achievement

Sass Grid System

Modular CSS with Sass

Achievement

Using a jQuery Carousel

Using jQuery Plugins

Achievement

Add a Sticky Navigation Bar

Using jQuery Plugins

Achievement

Practicing Object Basics

Practice Object Basics in JavaScript

Achievement

Harnessing the Power of Objects

Java Objects

Achievement

Combine and Minify Assets

Introduction to Front End Performance Optimization

Achievement

Optimize Assets

Introduction to Front End Performance Optimization

Achievement

Table Basics

HTML Tables

Achievement

Image Delivery with Srcset and Sizes

Responsive Images

Achievement

Understanding Classes

Object-Oriented PHP Basics

Achievement

Why Object-Oriented Programming?

Object-Oriented PHP Basics

Achievement

PHP Internal Functions

PHP Functions

Achievement

PHP Returns & Closures

PHP Functions

Achievement

PHP Functions Basics

PHP Functions

Achievement

PHP Loops

PHP Arrays and Control Structures

Achievement

PHP Arrays

PHP Arrays and Control Structures

Achievement

PHP Conditionals

PHP Arrays and Control Structures

Achievement

PHP on the Web

PHP Basics

Achievement

Daily Exercise Program

PHP Basics

Achievement

Unit Converter

PHP Basics

Achievement

Regular Expressions

Regular Expressions in JavaScript

Achievement

Array Iteration

JavaScript Array Iteration Methods

Achievement

Callbacks and the DOM

Callback Functions in JavaScript

Achievement

Callbacks with Timers

Callback Functions in JavaScript

Achievement

Sweeping Vues: Loops, Methods, Directives

Vue.js Basics

Achievement

What a Beautiful Vue!

Vue.js Basics

Achievement

Introducing Grid Layout

CSS Grid Layout

Achievement

Introduction to Callback Functions

Callback Functions in JavaScript

Achievement

HTML First

How to Make a Website

Achievement

Beginning HTML and CSS

How to Make a Website

Achievement

Meet Objects

Java Objects

Achievement

Introducing Vue

Vue.js Basics

Achievement

Going Further with Routing

React Router 4 Basics

Achievement

Navigating, Nesting and Redirecting Routes

React Router 4 Basics

Achievement

Getting Started with React Router

React Router 4 Basics

Achievement

Practicing Classes

Practice Classes in JavaScript

Achievement

Measuring Performance

Introduction to Front End Performance Optimization

Achievement

Discovery

Web Design Process

Achievement

JavaScript Objects and Conditionals

JavaScript Quickstart

Achievement

Getting to Know PHP

PHP Basics

Achievement

Refining the App

React by Example

Achievement

Building the Application

React by Example

Achievement

JavaScript Arrays and Loops

JavaScript Quickstart

Achievement

JavaScript Functions

JavaScript Quickstart

Achievement

ADS Writing and Preparation

Mobile App Design for iOS

Achievement

Introduction to UI Design

Mobile App Design for iOS

Achievement

Adding the Game Logic

Object-Oriented JavaScript: Challenge

Achievement

Making the Game Interactive

Object-Oriented JavaScript: Challenge

Achievement

Rendering the Game

Object-Oriented JavaScript: Challenge

Achievement

Building Constructor Methods and Generating Objects

Object-Oriented JavaScript: Challenge

Achievement

Setting up with Create React App

React by Example

Achievement

React Component Patterns

React Components

Achievement

Introducing jQuery Plugins

Using jQuery Plugins

Achievement

Stateful Components and Lifecycle Methods

React Components

Achievement

Getting the REST You Need 2

Introduction to REST APIs

Achievement

Setting Up an Angular Application

Angular Basics

Achievement

Managing State and Data Flow

React Components

Achievement

Build Modular Interfaces with Components

React Components

Achievement

Stateful Components

React Basics

Achievement

Introducing Props

React Basics

Achievement

Introduction to HTTP

HTTP Basics

Achievement

Thinking in Components

React Basics

Achievement

First Steps in React

React Basics

Achievement

Introducing 'Four in a Row'

Object-Oriented JavaScript: Challenge

Achievement

Playing a Counting Game

Introduction to Algorithms

Achievement

GET and POST Requests in a Browser

HTTP Basics

Achievement

Debugging, Best Practices, and Production

CSS to Sass

Achievement

Refactoring with Sass

CSS to Sass

Achievement

Perfecting the Prototype

Java Basics

Achievement

Using your New Tools

Java Basics

Achievement

Reduction and Aggregation

Introduction to Functional Programming

Achievement

Meet Streams

Introduction to Functional Programming

Achievement

Installing Sass and Setting up the Project

CSS to Sass

Achievement

Introduction

HTML

Achievement

Write Smart and Efficient CSS with Sass

Sass Basics

Achievement

Planning for Performance

Introduction to Front End Performance Optimization

Achievement

Getting Started with Java

Java Basics

Achievement

Security: Concerns

Introduction to Data Security

Achievement

Test Drive

Introduction to Selenium

Achievement

Meet Selenium

Introduction to Selenium

Achievement

Transitions and Transforms

Animating SVG with CSS

Achievement

Creating an SVG

SVG Basics

Achievement

Introduction to SVG

SVG Basics

Achievement

Workflows

Git Basics

Achievement

Working With Remote Repositories

Git Basics

Achievement

Merging

Git Basics

Achievement

Branches

Git Basics

Achievement

Getting Started With Git

Git Basics

Achievement

Why Version Control Matters

Git Basics

Achievement

Completing and Testing the API

Build a REST API With Express

Achievement

Next Steps

JavaScript Unit Testing

Achievement

Improve Your Workflow with Sass

Sass Basics

Achievement

GitHub and Other Remote Repositories

Introduction to Git

Achievement

Managing Committed Files

Introduction to Git

Achievement

First Commits

Introduction to Git

Achievement

Data Types and Variables

JavaScript Quickstart

Achievement

Getting Started with Sass

Sass Basics

Achievement

Add Reusable Logic to Your Sass

Sass Basics

Achievement

Advanced Selectors

CSS Selectors

Achievement

Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achievement

Building Forms With Bootstrap

Bootstrap 4 Basics

Achievement

Using Bootstrap Components

Bootstrap 4 Basics

Achievement

Responsive Layouts With the Bootstrap Grid

Bootstrap 4 Basics

Achievement

Choosing Options

HTML Forms

Achievement

Organizing Forms

HTML Forms

Achievement

Form Basics

HTML Forms

Achievement

Selectors - Beyond the Basics

CSS Selectors

Achievement

Welcome to the Treehouse Club

Treehouse Club: HTML

Achievement

Communicating with Mongo Through Mongoose

Build a REST API With Express

Achievement

Responsive Patterns

Responsive Layouts

Achievement

Media Queries

Responsive Layouts

Achievement

Getting Started with MongoDB

Mongo Basics

Achievement

Improving Our Tests

JavaScript Unit Testing

Achievement

Behavior Driven Development with Mocha & Chai

JavaScript Unit Testing

Achievement

Fundamental Concepts

CSS Basics

Achievement

Introducing Unit Testing

JavaScript Unit Testing

Achievement

Designing with the Latest Features

CSS Basics

Achievement

Methods

C# Objects

Achievement

Object-Oriented Programming

C# Objects

Achievement

Perfect

C# Basics

Achievement

Thinking in Components

React Basics (retired)

Achievement

Perform

C# Basics

Achievement

Console I/O

C# Basics

Achievement

Prepare and Plan

C# Basics

Achievement

Classes

Introducing ES2015

Achievement

Objects and New Collection Types

Introducing ES2015

Achievement

The Cooler Parts of ES2015

Introducing ES2015

Achievement

ES2015 Basics

Introducing ES2015

Achievement

Modeling Data for the API

Build a REST API With Express

Achievement

Building API Routes in Express

Build a REST API With Express

Achievement

Building a REST Service

Build a REST API With Express

Achievement

Express Middleware

User Authentication With Express and Mongo

Achievement

Sessions and Cookies

User Authentication With Express and Mongo

Achievement

User Registration and Login

User Authentication With Express and Mongo

Achievement

What is Authentication?

User Authentication With Express and Mongo

Achievement

Go Further With Mongo

Mongo Basics

Achievement

Working With Collections

Mongo Basics

Achievement

Understanding MongoDB

Mongo Basics

Achievement

Serving Static Files in Express

Express Basics

Achievement

Applying Express Knowledge

Express Basics

Achievement

Middleware

Express Basics

Achievement

Deeper into Routing with Express

Express Basics

Achievement

Using Templates with Express

Express Basics

Achievement

Basic Layout

CSS Basics

Achievement

Getting to Know Bootstrap 4

Bootstrap 4 Basics

Achievement

Getting Started with Express

Express Basics

Achievement

Responsive Theory

Responsive Layouts

Achievement

Improving your Gulp Workflow

Gulp Basics

Achievement

Compile Sass with Gulp

Gulp Basics

Achievement

Gulp your JavaScript workflow!

Gulp Basics

Achievement

Welcome to Gulp.js

Gulp Basics

Achievement

Updating and Uninstalling Packages with npm

npm Basics

Achievement

Installing Packages with npm

npm Basics

Achievement

First Steps in React

React Basics (retired)

Achievement

Building a Layout with Flexbox

CSS Flexbox Layout

Achievement

Flexbox Properties

CSS Flexbox Layout

Achievement

What is npm?

npm Basics

Achievement

Understanding Flexbox

CSS Flexbox Layout

Achievement

The Box Model

CSS Basics

Achievement

Understanding Values and Units

CSS Basics

Achievement

HTTP Methods and Headers

Build a Simple Dynamic Site with Node.js

Achievement

Creating a Basic Template Engine in Node.js

Build a Simple Dynamic Site with Node.js

Achievement

Handling Routes in Node.js

Build a Simple Dynamic Site with Node.js

Achievement

Creating a Simple Server in Node.js

Build a Simple Dynamic Site with Node.js

Achievement

Creating a Command Line Weather Application

Node.js Basics

Achievement

Handling Errors in Node

Node.js Basics

Achievement

Getting Data From an API With Node

Node.js Basics

Achievement

Introduction to Node.js

Node.js Basics

Achievement

Getting Started with CSS

CSS Basics

Achievement

Basic Selectors

CSS Basics

Achievement

JavaScript Tools and Workflows

The Landscape of JavaScript

Achievement

JavaScript is Everywhere

The Landscape of JavaScript

Achievement

Going Further with HTML

HTML Basics

Achievement

Images, Text and Links

HTML Basics

Achievement

Structuring Your Content

HTML Basics

Achievement

Adding a New Web Page

Introduction to HTML and CSS

Achievement

Make It Beautiful with CSS

Introduction to HTML and CSS

Achievement

HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS

Achievement

Getting Familiar with HTML and CSS

Introduction to HTML and CSS

Achievement

Positioning Page Content

CSS Layout Basics

Achievement

CSS Layout Project

CSS Layout Basics

Achievement

Page Layout with the Float Property

CSS Layout Basics

Achievement

Controlling Layout with CSS Display Modes

CSS Layout Basics

Achievement

Getting Started with CSS Layout

CSS Layout Basics

Achievement

Getting Started With HTML

HTML Basics

Achievement

AJAX and APIs

AJAX Basics

Achievement

jQuery and AJAX

AJAX Basics

Achievement

Programming AJAX

AJAX Basics

Achievement

AJAX Concepts

AJAX Basics

Achievement

Working with jQuery Collections (2017)

jQuery Basics

Achievement

Understanding jQuery Events and DOM Traversal (2017)

jQuery Basics

Achievement

Introducing jQuery (2017)

jQuery Basics

Achievement

Getters and Setters

Object-Oriented JavaScript

Achievement

Working with Classes in JavaScript

Object-Oriented JavaScript

Achievement

Object Basics

Object-Oriented JavaScript

Achievement

Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achievement

Improving the Application Code

DOM Scripting By Example

Achievement

Editing and Filtering Names

DOM Scripting By Example

Achievement

Adding and Removing Names

DOM Scripting By Example

Achievement

Traversing the DOM

JavaScript and the DOM

Achievement

Responding to User Interaction

JavaScript and the DOM

Achievement

Making Changes to the DOM

JavaScript and the DOM

Achievement

Getting a Handle on the DOM

JavaScript and the DOM

Achievement

The Browser Environment

JavaScript and the DOM

Achievement

Create Function Using Arrow Syntax

Getting Started With ES2015

Achievement

Using Template Literals

Getting Started With ES2015

Achievement

Defining Variables With let and const

Getting Started With ES2015

Achievement

JavaScript Objects

JavaScript Loops, Arrays and Objects

Achievement

JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achievement

JavaScript Loops

JavaScript Loops, Arrays and Objects

Achievement

JavaScript Functions

JavaScript Basics

Achievement

JavaScript Conditional Statements

JavaScript Basics

Achievement

JavaScript Numbers

JavaScript Basics

Achievement

JavaScript Variables

JavaScript Basics

Achievement

Introducing JavaScript

JavaScript Basics

Achievement

Finishing the Game

Introducing JavaScript

Achievement

Introducing JavaScript

Introducing JavaScript

Achievement

Newbie