Achievement

Data Flow

React Components

Achievement

Build Modular Interfaces with Components

React Components

Achievement

Understanding State

React Basics

Achievement

Introducing Props

React Basics

Achievement

Thinking in Components

React Basics

Achievement

Introduction to Individual Chatbots

AI Chatbot Comparison: Google Bard, Bing AI, Claude, ChatGPT

Achievement

Introduction to AI Chatbots

AI Chatbot Comparison: Google Bard, Bing AI, Claude, ChatGPT

Achievement

First Steps in React

React Basics

Achievement

Managing Packages with NPM

npm Basics

Achievement

Hello Node.js

npm Basics

Achievement

Creating a Command Line Application

Node.js Basics

Achievement

Handling Errors in Node

Node.js Basics

Achievement

Getting Data From an API With Node

Node.js Basics

Achievement

Stateful Components

React Basics (2018)

Achievement

Introducing Props

React Basics (2018)

Achievement

Thinking in Components

React Basics (2018)

Achievement

First Steps in React

React Basics (2018)

Achievement

Combining Array Methods

JavaScript Array Iteration Methods

Achievement

Array Manipulation

JavaScript Array Iteration Methods

Achievement

Meet pandas

Introduction to pandas

Achievement

Writing a Classifier

Machine Learning Basics

Achievement

Machine Learning Vocabulary

Machine Learning Basics

Achievement

Introduction to Machine Learning

Machine Learning Basics

Achievement

Introducing Large Language Models

Introducing Large Language Models

Achievement

PHPDB Stage 3: Using Relational Data

Integrating PHP with Databases

Achievement

PHPDB Stage 2: Querying the Database with PHP

Integrating PHP with Databases

Achievement

PHPDB Stage 1: Databases and PHP

Integrating PHP with Databases

Achievement

Filtering Inputs and Escaping Outputs in PHP

Working with $_GET and $_POST in PHP

Achievement

$_GET and $_POST

Working with $_GET and $_POST in PHP

Achievement

PHP Inventory

Build a Basic PHP Website

Achievement

PHP Includes

Build a Basic PHP Website

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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

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PHP Conditionals

PHP Arrays and Control Structures

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CSS Media Queries

CSS Layout

Achievement

CSS Layout Techniques

CSS Layout

Achievement

Box Model Concepts

CSS Layout

Achievement

The CSS Box Model

CSS Layout

Achievement

Fundamental Concepts

CSS Basics

Achievement

Understanding Values and Units

CSS Basics

Achievement

Basic Selectors

CSS Basics

Achievement

Getting Started with CSS

CSS Basics

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PHP on the Web

PHP Basics

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Daily Exercise Program

PHP Basics

Achievement

Unit Converter

PHP Basics

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Getting to Know PHP

PHP Basics

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

Ruby Loops

Ruby Loops

Achievement

Build a Grocery List Program

Ruby Collections

Achievement

Ruby Hashes

Ruby Collections

Achievement

Ruby Arrays

Ruby Collections

Achievement

Ruby Conditionals

Ruby Basics

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Ruby Numeric Types

Ruby Basics

Achievement

Ruby Objects

Ruby Basics

Achievement

Ruby Strings and Escape Sequences

Ruby Basics

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Ruby Syntax

Ruby Basics

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Discovery

How to Start a Business

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Practice forEach

Practice forEach in JavaScript

Achievement

Array Iteration

JavaScript Array Iteration Methods

Achievement

Hierarchy and Layout

Designing Layouts

Achievement

Writing Copy

Designing Layouts

Achievement

Array Programming

Introduction to NumPy

Achievement

Using Java's Built-In Annotations

Java Annotations

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Getting Started With Spreadsheets

Spreadsheet Basics

Achievement

Introducing Spreadsheets

Spreadsheet Basics

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S3 Storage Service

AWS with S3

Achievement

AWS and "The Cloud"

AWS with S3

Achievement

Build a Spreadsheet

Spreadsheet Basics

Achievement

Array Organization

Introduction to NumPy

Achievement

Introduction to Node.js

Node.js Basics

Achievement

Navigating, Nesting and Redirecting Routes

React Router 4 Basics

Achievement

Meet NumPy

Introduction to NumPy

Achievement

The Data Analysis Process

Data Analysis Basics

Achievement

Getting to Know Your Data

Data Analysis Basics

Achievement

Introducing Data Analysis

Data Analysis Basics

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Using Template Literals

Getting Started With ES2015

Achievement

Defining Variables With let and const

Getting Started With ES2015

Achievement

Creating a Command Line Weather Application

Node.js Basics 2017

Achievement

Tools and Techniques

Ethical Design

Achievement

Getting Started with Android

Build a Simple Android App with Java

Achievement

The Deeper Negative Impacts on Society

Ethical Design

Achievement

Tricky Interfaces & Dirty Data

Ethical Design

Achievement

Welcome to Basic Statistics for Data Analysis

Basic Statistics for Data Analysis

Achievement

Dockerize a Web App

Introduction to Docker

Achievement

Managing Images and Containers

Introduction to Docker

Achievement

Introduction to Ethical Design

Ethical Design

Achievement

Introduction

Intro to Gender & Sexuality

Achievement

Why Test

Unit Testing in Java

Achievement

Advanced Tooling

Local Development Environments

Achievement

Communication, Time Management, and Problem Solving

Important Skills for Professional Success

Achievement

Imposter Syndrome

Imposter Syndrome

Achievement

Video Marketing

How to Market Your Business

Achievement

Email Marketing

How to Market Your Business

Achievement

Create Function Using Arrow Syntax

Getting Started With ES2015

Achievement

Building Images Using Dockerfiles

Introduction to Docker

Achievement

Fundamentals of Docker

Introduction to Docker

Achievement

Docker Use Cases

Introduction to Docker

Achievement

Search Engine Optimization

How to Market Your Business

Achievement

Angular Form Validation

Angular Basics

Achievement

Angular Basic Forms

Angular Basics

Achievement

Services in Angular

Angular Basics

Achievement

Angular Components

Angular Basics

Achievement

Setting Up an Angular Application

Angular Basics

Achievement

Usability Testing

How to Market Your Business

Achievement

IDE Exploration

Local Development Environments

Achievement

How it Works

Local Development Environments

Achievement

Java Maps

Java Maps

Achievement

Java Lists

Java Lists

Achievement

Generics in Java

Generics in Java

Achievement

Interfaces in Java

Interfaces in Java

Achievement

Java Inheritance

Inheritance in Java

Achievement

Introducing IntelliJ and Unpacking Packages

Introducing IntelliJ and Unpacking Packages

Achievement

Gotchas and Wins

Java Arrays

Achievement

Iteration

Java Arrays

Achievement

Creation

Java Arrays

Achievement

Delivering the MVP

Java Objects

Achievement

Creating the MVP

Java Objects

Achievement

Harnessing the Power of Objects

Java Objects

Achievement

Meet Objects

Java Objects

Achievement

Perfecting the Prototype

Java Basics

Achievement

Using your New Tools

Java Basics

Achievement

Getting Started with Java

Java Basics

Achievement

Welcome to Basic Math for Data Analysis

Basic Math for Data Analysis

Achievement

Usability Basics

How to Market Your Business

Achievement

Loop Through Objects

JavaScript Objects

Achievement

Object Basics

JavaScript Objects

Achievement

Multidimensional Arrays

JavaScript Arrays

Achievement

Loop Through Arrays

JavaScript Arrays

Achievement

Store Multiple Values in an Array

JavaScript Arrays

Achievement

Working with 'for' Loops

JavaScript Loops

Achievement

Simplify Repetitive Tasks with Loops

JavaScript Loops

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

Making the Game Interactive

Object-Oriented JavaScript: Challenge

Achievement

Rendering the Game

Object-Oriented JavaScript: Challenge

Achievement

Handling Errors in Node

Node.js Basics 2017

Achievement

Getting Data From an API With Node

Node.js Basics 2017

Achievement

Social Media

How to Market Your Business

Achievement

Getting the REST You Need 2

Introduction to REST APIs

Achievement

Introduction to Node.js

Node.js Basics 2017

Achievement

Building Constructor Methods and Generating Objects

Object-Oriented JavaScript: Challenge

Achievement

Introducing 'Four in a Row'

Object-Oriented JavaScript: Challenge

Achievement

Checking Out and Returning a Book

Practice Object Interaction

Achievement

Starting with Some Methods

Practice Object Interaction

Achievement

The Rough Plan

Practice Object Interaction

Achievement

Getters and Setters

Object-Oriented JavaScript

Achievement

Practicing Classes

Practice Classes in JavaScript

Achievement

Working with Classes in JavaScript

Object-Oriented JavaScript

Achievement

Practicing Object Basics

Practice Object Basics in JavaScript

Achievement

Object Basics

Object-Oriented JavaScript

Achievement

Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achievement

Exploring Async/Await

Asynchronous Programming with JavaScript

Achievement

Understanding Promises

Asynchronous Programming with JavaScript

Achievement

Asynchronous JavaScript with Callbacks

Asynchronous Programming with JavaScript

Achievement

What is Asynchronous Programming?

Asynchronous Programming with JavaScript

Achievement

Callbacks and the DOM

Callback Functions in JavaScript

Achievement

Callbacks with Timers

Callback Functions in JavaScript

Achievement

Introduction to Callback Functions

Callback Functions in 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

Programming AJAX

AJAX Basics

Achievement

AJAX Concepts

AJAX Basics

Achievement

JavaScript Frameworks, Libraries, and Developer Roles

The JavaScript Ecosystem

Achievement

JavaScript Outside of the Browser

The JavaScript Ecosystem

Achievement

JavaScript Tools and Workflows

The Landscape of JavaScript

Achievement

JavaScript is Everywhere

The Landscape of JavaScript

Achievement

Character Builder

Flask Basics

Achievement

Control Flow With Conditional Statements

Swift Collections and Control Flow

Achievement

Control Flow With Loops

Swift Collections and Control Flow

Achievement

Dictionaries in Swift

Swift Collections and Control Flow

Achievement

Introduction to Collections

Swift Collections and Control Flow

Achievement

Swift Operators

Swift Basics

Achievement

Swift Types

Swift Basics

Achievement

An Introduction to Swift Programming

Swift Basics

Achievement

Flask Templates

Flask Basics

Achievement

Welcome to Flask

Flask Basics

Achievement

Creating and Modifying Database Tables

Creating and Modifying Database Tables

Achievement

Telling the Story

Design Thinking

Achievement

Designing for Your User’s "To-be"

Design Thinking

Achievement

Day 3: Getting Creative

SQL Reporting by Example

Achievement

Day 2: Advanced Selecting

SQL Reporting by Example

Achievement

Day 1: Joining Tables

SQL Reporting by Example

Achievement

Orientation: Selecting Data

SQL Reporting by Example

Achievement

Subqueries

Querying Relational Databases

Achievement

Set Operations

Querying Relational Databases

Achievement

Joining Table Data with SQL

Querying Relational Databases

Achievement

Table Relationships

Querying Relational Databases

Achievement

Database Keys

Querying Relational Databases

Achievement

Database Normalization

Querying Relational Databases

Achievement

Date and Time Functions

Reporting with SQL

Achievement

Aggregate and Numeric Functions

Reporting with SQL

Achievement

Working with Text

Reporting with SQL

Achievement

Ordering, Limiting and Paging Results

Reporting with SQL

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

Understanding your User’s “As-is” Scenario

Design Thinking

Achievement

Becoming Acquainted with Your User

Design Thinking

Achievement

Becoming a Design Thinker

Design Thinking

Achievement

Adding Data to a Database

Modifying Data with SQL

Achievement

Finding the Data You Want

SQL Basics

Achievement

Getting Data from a Database

SQL Basics

Achievement

Data, Databases and SQL

SQL Basics

Achievement

The Lambda Lambada

Functional Python

Achievement

Functional Workhorses

Functional Python

Achievement

Functional Rules

Functional Python

Achievement

Covering Your Bases

Python Testing

Achievement

Be Assertive!

Python Testing

Achievement

What Is Testing?

Python Testing

Achievement

Gettin' CRUD-y With It

Using Databases in Python

Achievement

Scrum Artifacts

Scrum Basics

Achievement

Scrum Events

Scrum Basics

Achievement

Introducing Scrum

Scrum Basics

Achievement

What is Agile?

Scrum Basics

Achievement

Searching Names

Algorithms: Sorting and Searching

Achievement

Sorting Algorithms

Algorithms: Sorting and Searching

Achievement

Merge Sort and Linked Lists

Introduction to Data Structures

Achievement

The Merge Sort Algorithm

Introduction to Data Structures

Achievement

Building a Linked List

Introduction to Data Structures

Achievement

Exploring Arrays

Introduction to Data Structures

Achievement

Dice Roller

Object-Oriented Python

Achievement

Python: Advanced Objects

Object-Oriented Python

Achievement

Python: Inheritance

Object-Oriented Python

Achievement

Python: Instant Objects

Object-Oriented Python

Achievement

Iterating and Packing with Dictionaries

Introducing Dictionaries

Achievement

Introducing Dictionaries

Introducing Dictionaries

Achievement

Sequence Operations

Python Sequences

Achievement

Sequence Iterations

Python Sequences

Achievement

Packing and Unpacking

Functions, Packing, and Unpacking

Achievement

Getting Info In and Out of Functions

Functions, Packing, and Unpacking

Achievement

Introduction to Functions

Functions, Packing, and Unpacking

Achievement

Build an Application

Introducing Lists

Achievement

Getting to Know Tuples

Introducing Tuples

Achievement

Using Lists

Introducing Lists

Achievement

Meet Lists

Introducing Lists

Achievement

Recursion and Space Complexity

Introduction to Algorithms

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

Algorithms in Code

Introduction to Algorithms

Achievement

Time Complexity

Introduction to Algorithms

Achievement

Playing a Counting Game

Introduction to Algorithms

Achievement

Responsive Layouts With the Bootstrap Grid

Bootstrap Basics

Achievement

Getting to Know Bootstrap 4

Bootstrap Basics

Achievement

Arrow Functions

JavaScript Functions

Achievement

Pass Information Into Functions

JavaScript Functions

Achievement

Create Reusable Code with Functions

JavaScript Functions

Achievement

The Math Object

JavaScript Numbers

Achievement

Working with Numbers

JavaScript Numbers

Achievement

Making Decisions in Your Code with Conditional Statements

JavaScript Basics

Achievement

Working With Strings

JavaScript Basics

Achievement

Storing and Tracking Information with Variables

JavaScript Basics

Achievement

Hello, JavaScript!

JavaScript 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

Advanced Selectors

CSS Selectors

Achievement

Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achievement

Selectors - Beyond the Basics

CSS Selectors

Achievement

Traversing the DOM

JavaScript and the DOM (Retiring)

Achievement

Responding to User Interaction

Interacting with the DOM

Achievement

Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achievement

Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achievement

The Browser Environment

JavaScript and the DOM (Retiring)

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

Choosing Options

HTML Forms

Achievement

Organizing Forms

HTML Forms

Achievement

Form Basics

HTML Forms

Achievement

Building a Layout with Flexbox

CSS Flexbox Layout

Achievement

Flexbox Properties

CSS Flexbox Layout

Achievement

Understanding Flexbox

CSS Flexbox Layout

Achievement

Responsive Patterns

Responsive Layouts

Achievement

Media Queries

Responsive Layouts

Achievement

Responsive Theory

Responsive Layouts

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

Introducing CRUD Applications

ASP.NET MVC Forms

Achievement

Adding a List Page

ASP.NET MVC Basics

Achievement

Modeling and Presenting Data

ASP.NET MVC Basics

Achievement

Controlling Layout with CSS Display Modes

CSS Layout Basics

Achievement

Getting Started with CSS Layout

CSS Layout Basics

Achievement

JavaScript Functions

JavaScript Basics (Retired)

Achievement

JavaScript Conditional Statements

JavaScript Basics (Retired)

Achievement

Views

ASP.NET MVC Basics

Achievement

Controllers

ASP.NET MVC Basics

Achievement

Project Setup

ASP.NET MVC Basics

Achievement

JavaScript Numbers

JavaScript Basics (Retired)

Achievement

JavaScript Variables

JavaScript Basics (Retired)

Achievement

Introducing JavaScript

JavaScript Basics (Retired)

Achievement

Fundamental Concepts

CSS Basics (2014)

Achievement

Designing with the Latest Features

CSS Basics (2014)

Achievement

Basic Layout

CSS Basics (2014)

Achievement

The Box Model

CSS Basics (2014)

Achievement

What To Test

Unit Testing in C#

Achievement

Test Driven Development

Unit Testing in C#

Achievement

Writing Unit Tests

Unit Testing in C#

Achievement

Unit Testing

Unit Testing in C#

Achievement

Understanding Values and Units

CSS Basics (2014)

Achievement

Basic Selectors

CSS Basics (2014)

Achievement

Getting Started with CSS

CSS Basics (2014)

Achievement

Get Involved in Open Source

GitHub Basics

Achievement

Create a Web Presence on GitHub

GitHub Basics

Achievement

Working on a Team

GitHub Basics

Achievement

Working By Yourself

GitHub Basics

Achievement

Hello, GitHub!

GitHub Basics

Achievement

GitHub and Other Remote Repositories

Introduction to Git

Achievement

Managing Committed Files

Introduction to Git

Achievement

Query Builder

Querying With LINQ

Achievement

Query Operators

Querying With LINQ

Achievement

First Commits

Introduction to Git

Achievement

Going Further with HTML

HTML Basics

Achievement

Functional!

Querying With LINQ

Achievement

Now You're Querying!

Querying With LINQ

Achievement

Sets and Dictionaries

C# Collections

Achievement

Lists

C# Collections

Achievement

Vulnerabilities: Configuration, Components, and Logging

OWASP Top 10 Vulnerabilities

Achievement

Vulnerabilities: Authentication, Access, and Sensitive Data

OWASP Top 10 Vulnerabilities

Achievement

Vulnerabilities: Injection, XSS, CSRF

OWASP Top 10 Vulnerabilities

Achievement

The OWASP Top 10 Explained

OWASP Top 10 Vulnerabilities

Achievement

Maintaining Secure Web Apps

Introduction to Application Security

Achievement

Protecting Data and Keeping Attackers Out

Introduction to Application Security

Achievement

Why Protect Your Web Apps

Introduction to Application Security

Achievement

Security: Solutions

Introduction to Data Security

Achievement

Security: Concerns

Introduction to Data Security

Achievement

Security in Practice

Security Literacy

Achievement

Common Attacks and Defenses

Security Literacy

Achievement

Hello Internet!

Security Literacy

Achievement

Images, Text and Links

HTML Basics

Achievement

Arrays

C# Collections

Achievement

Data Retreiver

C# Streams and Data Processing

Achievement

Structuring Your Content

HTML Basics

Achievement

Getting Started With HTML

HTML Basics

Achievement

Serialized!

C# Streams and Data Processing

Achievement

MASH JavaScript

Treehouse Club - MASH

Achievement

MASH CSS

Treehouse Club - MASH

Achievement

MASH HTML

Treehouse Club - MASH

Achievement

Treehouse Club - JavaScript

Treehouse Club: JavaScript

Achievement

Data Parser

C# Streams and Data Processing

Achievement

Finishing the Game

Introducing JavaScript

Achievement

Introducing JavaScript

Introducing JavaScript

Achievement

How to Make Wireframes in Adobe XD

Introduction to Wireframing

Achievement

How to Make Wireframes in Sketch

Achievement

How to Make Wireframes in Balsamiq

Introduction to Wireframing

Achievement

How to Make Wireframes on Paper

Introduction to Wireframing

Achievement

Data Reader

C# Streams and Data Processing

Achievement

What is Wireframing?

Introduction to Wireframing

Achievement

Principles of Design

Visual Design Foundations

Achievement

Elements of Design

Visual Design Foundations

Achievement

Adding a New Web Page

Introduction to HTML and CSS (2016)

Achievement

Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achievement

HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achievement

Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achievement

GET and POST Requests in a Browser

HTTP Basics

Achievement

Introduction to HTTP

HTTP Basics

Achievement

Abstraction

Intermediate C#

Achievement

System.Object

Intermediate C#

Achievement

Polymorphism

Intermediate C#

Achievement

Treehouse Club - CSS

Treehouse Club: CSS

Achievement

Welcome to the Treehouse Club

Treehouse Club: HTML

Achievement

DNS Basics

Technology Foundations

Achievement

Graphic Basics

Technology Foundations

Achievement

WWW

How the Web Works

Achievement

The Internet

How the Internet Works

Achievement

Computer Languages

Computer Basics

Achievement

Computer Basics

Computer Basics

Achievement

Loops and Final Touches

C# Objects

Achievement

Encapsulation with Properties

C# Objects

Achievement

Encapsulation and Arrays

C# Objects

Achievement

Inheritance

C# Objects

Achievement

Methods

C# Objects

Achievement

Object-Oriented Programming

C# Objects

Achievement

If Statements

C# Basics

Achievement

Numbers

C# Basics

Achievement

Strings

C# Basics

Achievement

Methods

C# Basics

Achievement

C# Syntax

C# Basics

Achievement

Our Diary App

Using Databases in Python

Achievement

Meet Peewee

Using Databases in Python

Achievement

Python Regular Expressions

Regular Expressions in Python

Achievement

Timezones

Dates and Times in Python (2014)

Achievement

Math Quiz App

Dates and Times in Python (2014)

Achievement

Dates and Times

Dates and Times in Python (2014)

Achievement

Buggy Logs

Write Better Python

Achievement

Cleaner Code

Write Better Python

Achievement

Hack-n-Slash

Object-Oriented Python (retired)

Achievement

Python Inheritance

Object-Oriented Python (retired)

Achievement

Python Objects

Object-Oriented Python (retired)

Achievement

Dungeon Game

Python Collections (Retired)

Achievement

Tuples

Python Collections (Retired)

Achievement

Dictionaries

Python Collections (Retired)

Achievement

Slices

Python Collections (Retired)

Achievement

Lists Redux

Python Collections (Retired)

Achievement

Letter Game App

Python Basics (2015)

Achievement

Number Game App

Python Basics (2015)

Achievement

Shopping List App

Python Basics (2015)

Achievement

Logic in Python

Python Basics (2015)

Achievement

Python Data Types

Python Basics (2015)

Achievement

Python For Beginners

Python Basics (2015)

Achievement

Newbie