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David Clausen

Member Since January 6, 2014

11,403

Total Points

•
3,480

Ruby

3449 pts
Achievements

31 pts
Forum
•
3,375

JavaScript

3338 pts
Achievements

37 pts
Forum
•
1,425

HTML

1425 pts
Achievements

0 pts
Forum
•
1,282

CSS

1206 pts
Achievements

76 pts
Forum
•
1,180

Development Tools

1179 pts
Achievements

1 pts
Forum
•
13

Python

0 pts
Achievements

13 pts
Forum
•
1

Android

1 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

122 Achievements

Achievement
Installing a Ruby Development Environment

Installing a Ruby Development Environment

Achieved
Sep 15, 2015
Achievement
Gems In Depth

Ruby Gems

Achieved
Sep 14, 2015
Achievement
Ruby Gems

Ruby Gems

Achieved
Sep 14, 2015
Achievement
Ruby Standard Library: Part 2

Ruby Core and Standard Library

Achieved
Sep 14, 2015
Achievement
Ruby Standard Library: Part 1

Ruby Core and Standard Library

Achieved
Sep 2, 2015
Achievement
Ruby Core

Ruby Core and Standard Library

Achieved
Sep 1, 2015
Achievement
Store Inventory Using Modules

Ruby Modules

Achieved
Sep 1, 2015
Achievement
Include and Extend

Ruby Modules

Achieved
Aug 26, 2015
Achievement
Ruby Core Modules

Ruby Modules

Achieved
Aug 26, 2015
Achievement
Ruby Module Basics

Ruby Modules

Achieved
Aug 25, 2015
Achievement
Input and Output

Build an Address Book in Ruby

Achieved
Aug 24, 2015
Achievement
Search

Build an Address Book in Ruby

Achieved
Aug 24, 2015
Achievement
Ruby Class Design

Build an Address Book in Ruby

Achieved
Aug 22, 2015
Achievement
Blocks Practice

Ruby Blocks

Achieved
Aug 22, 2015
Achievement
Working With Blocks

Ruby Blocks

Achieved
Aug 22, 2015
Achievement
Ruby Blocks

Ruby Blocks

Achieved
Aug 21, 2015
Achievement
Build a Simple Todo List Program

Ruby Booleans

Achieved
Aug 4, 2015
Achievement
Ruby Booleans

Ruby Booleans

Achieved
Aug 3, 2015
Achievement
Build a Bank Account Class

Ruby Objects and Classes

Achieved
Aug 2, 2015
Achievement
Ruby Variables and Methods

Ruby Objects and Classes

Achieved
Aug 2, 2015
Achievement
Ruby Objects and Classes

Ruby Objects and Classes

Achieved
Aug 1, 2015
Achievement
Build a Simple Contact List

Ruby Loops

Achieved
Jul 29, 2015
Achievement
Ruby Iteration

Ruby Loops

Achieved
Jul 28, 2015
Achievement
Ruby Loops

Ruby Loops

Achieved
Jul 28, 2015
Achievement
Build a Grocery List Program

Ruby Collections

Achieved
Jul 28, 2015
Achievement
Ruby Hashes

Ruby Collections

Achieved
Jul 28, 2015
Achievement
Ruby Arrays

Ruby Collections

Achieved
Jul 28, 2015
Achievement
Ruby Logical Operators

Ruby Operators and Control Structures

Achieved
Jul 28, 2015
Achievement
Ruby Control Structures

Ruby Operators and Control Structures

Achieved
Jul 28, 2015
Achievement
Ruby Operators

Ruby Operators and Control Structures

Achieved
Jul 28, 2015
Achievement
Ruby Methods

Ruby Basics (Retired)

Achieved
Jul 28, 2015
Achievement
Ruby Numbers (Ruby Basics)

Ruby Basics (Retired)

Achieved
Jul 28, 2015
Achievement
Ruby Strings (Ruby Basics)

Ruby Basics (Retired)

Achieved
Jul 28, 2015
Achievement
How Ruby Works

Ruby Basics (Retired)

Achieved
Jul 28, 2015
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Jul 27, 2015
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Jul 27, 2015
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Jul 27, 2015
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Jul 27, 2015
Achievement
Workflows

Git Basics

Achieved
Jul 27, 2015
Achievement
Working With Remote Repositories

Git Basics

Achieved
Jul 26, 2015
Achievement
Merging

Git Basics

Achieved
Jul 26, 2015
Achievement
Branches

Git Basics

Achieved
Jul 26, 2015
Achievement
Getting Started With Git

Git Basics

Achieved
Jul 26, 2015
Achievement
Why Version Control Matters

Git Basics

Achieved
Jul 25, 2015
Achievement
Installing Programs

Console Foundations

Achieved
Jul 25, 2015
Achievement
Environment and Redirection

Console Foundations

Achieved
Jul 25, 2015
Achievement
Console Processes

Console Foundations

Achieved
Jul 25, 2015
Achievement
Console Users and Permission

Console Foundations

Achieved
Jul 25, 2015
Achievement
Moving Around in the Console

Console Foundations

Achieved
Jul 25, 2015
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Jul 21, 2015
Achievement
Web Apps

Accessibility

Achieved
Jul 21, 2015
Achievement
Websites

Accessibility

Achieved
Jul 21, 2015
Achievement
Introduction

Accessibility

Achieved
Jul 21, 2015
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Jul 20, 2015
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Jul 10, 2015
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Jul 1, 2015
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Jul 1, 2015
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Jul 1, 2015
Achievement
Media Queries

Responsive Layouts

Achieved
Jul 1, 2015
Achievement
Responsive Theory

Responsive Layouts

Achieved
Jun 30, 2015
Achievement
Quiz Practice Project

Object-Oriented JavaScript (2015)

Achieved
Jun 29, 2015
Achievement
Prototypal Inheritance

Object-Oriented JavaScript (2015)

Achieved
Jun 29, 2015
Achievement
Constructor Functions & Prototypes

Object-Oriented JavaScript (2015)

Achieved
Jun 29, 2015
Achievement
Introduction to Methods

Object-Oriented JavaScript (2015)

Achieved
Jun 27, 2015
Achievement
Custom Media Players

HTML Video and Audio (Retired)

Achieved
Jun 26, 2015
Achievement
Captioning Video

HTML Video and Audio (Retired)

Achieved
Jun 25, 2015
Achievement
Media Basics

HTML Video and Audio (Retired)

Achieved
Jun 24, 2015
Achievement
Traversing and Manipulating the DOM with JavaScript

Interactive Web Pages with JavaScript

Achieved
Jun 23, 2015
Achievement
Selecting Elements and Adding Events with JavaScript

Interactive Web Pages with JavaScript

Achieved
May 20, 2015
Achievement
Structuring Tables

HTML Tables

Achieved
May 13, 2015
Achievement
Table Basics

HTML Tables

Achieved
Mar 16, 2015
Achievement
Creating a Simple Drawing Application

jQuery Basics (2014)

Achieved
Mar 16, 2015
Achievement
Creating a Password Confirmation Form

jQuery Basics (2014)

Achieved
Feb 25, 2015
Achievement
Creating a Mobile Drop Down Menu

jQuery Basics (2014)

Achieved
Feb 24, 2015
Achievement
Creating a Simple Lightbox

jQuery Basics (2014)

Achieved
Feb 13, 2015
Achievement
Creating a Spoiler Revealer

jQuery Basics (2014)

Achieved
Feb 13, 2015
Achievement
Introduction to jQuery

jQuery Basics (2014)

Achieved
Feb 13, 2015
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Feb 12, 2015
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Feb 12, 2015
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Feb 9, 2015
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Feb 9, 2015
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Feb 6, 2015
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Feb 6, 2015
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Feb 6, 2015
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Feb 5, 2015
Achievement
JavaScript and the DOM

Interactive Web Pages with JavaScript

Achieved
Feb 4, 2015
Achievement
Choosing Options

HTML Forms

Achieved
Feb 4, 2015
Achievement
Organizing Forms

HTML Forms

Achieved
Feb 4, 2015
Achievement
Form Basics

HTML Forms

Achieved
Feb 4, 2015
Achievement
JavaScript Objects

JavaScript Foundations

Achieved
Feb 4, 2015
Achievement
JavaScript Functions

JavaScript Foundations

Achieved
Feb 3, 2015
Achievement
JavaScript Arrays

JavaScript Foundations

Achieved
Feb 3, 2015
Achievement
JavaScript Numbers

JavaScript Foundations

Achieved
Jan 29, 2015
Achievement
JavaScript Strings

JavaScript Foundations

Achieved
Jan 29, 2015
Achievement
Introduction Variables

JavaScript Foundations

Achieved
Jan 28, 2015
Achievement
Functions

Introduction to Programming

Achieved
Jan 27, 2015
Achievement
Objects and Arrays

Introduction to Programming

Achieved
Jan 27, 2015
Achievement
Control Structures

Introduction to Programming

Achieved
Jan 27, 2015
Achievement
Basics

Introduction to Programming

Achieved
Jan 27, 2015
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Jan 27, 2015
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Jan 27, 2015
Achievement
The Box Model

CSS Basics (2014)

Achieved
Jan 26, 2015
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Jan 23, 2015
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Jan 23, 2015
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Jan 23, 2015
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Jan 23, 2015
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Jan 22, 2015
Achievement
Sharing a Website

How to Make a Website

Achieved
Jan 22, 2015
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Jan 22, 2015
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
Jan 22, 2015
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
Jan 20, 2015
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
Jan 20, 2015
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Jan 20, 2015
Achievement
Creating HTML Content

How to Make a Website

Achieved
Jan 19, 2015
Achievement
HTML First

How to Make a Website

Achieved
Apr 11, 2014
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Apr 10, 2014
Achievement
Creating a Website Structure

Build a Simple Website

Achieved
Apr 7, 2014
Achievement
Text Editors and HTML

Build a Simple Website

Achieved
Apr 6, 2014
Achievement
Website Basics

Build a Simple Website

Achieved
Apr 3, 2014
Achievement
Prototyping With Bootstrap

Framework Basics

Achieved
Jan 10, 2014
Achievement
Introduction to Front-End Frameworks

Framework Basics

Achieved
Jan 7, 2014
Achievement
Newbie

Achieved
Jan 6, 2014