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Lars Wettmann

Rotterdam

Open to Work

CEO and developer at CIRCLE Dance, dancer, teacher and choreographer. Webdesigner and PHP/MySQL backend programmer. Just programmed my first AngularJS app. Check circle.dance for the page I worked on in the last 3 years (front and backend).

15,376

Total Points

•
3,124

Python

3105 pts
Achievements

19 pts
Forum
•
2,198

Android

2198 pts
Achievements

0 pts
Forum
•
1,475

Development Tools

1475 pts
Achievements

0 pts
Forum
•
1,197

PHP

1197 pts
Achievements

0 pts
Forum
•
999

Design

999 pts
Achievements

0 pts
Forum
•
709

Java

709 pts
Achievements

0 pts
Forum
•
665

JavaScript

665 pts
Achievements

0 pts
Forum
•
586

CSS

586 pts
Achievements

0 pts
Forum
•
168

HTML

168 pts
Achievements

0 pts
Forum
•
156

Ruby

156 pts
Achievements

0 pts
Forum
•
102

Business

102 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.

Skills & Experience

Company

LGG dance
Job Title

freelancer
Spoken Languages
- english
- german
- dutch
- french

193 Achievements

Achievement
Covering Your Bases

Python Testing

Achieved
Mar 25, 2017
Achievement
Be Assertive!

Python Testing

Achieved
Mar 25, 2017
Achievement
What Is Testing?

Python Testing

Achieved
Mar 25, 2017
Achievement
Getting the REST You Need

REST API Basics

Achieved
Nov 9, 2016
Achievement
Django Authentication

Django Authentication

Achieved
Oct 31, 2016
Achievement
Detail View

Customizing the Django Admin

Achieved
Oct 31, 2016
Achievement
List View

Customizing the Django Admin

Achieved
Oct 31, 2016
Achievement
The Django Admin

Customizing the Django Admin

Achieved
Oct 31, 2016
Achievement
Inlines and Media

Django Forms

Achieved
Oct 31, 2016
Achievement
Django Model Forms

Django Forms

Achieved
Oct 25, 2016
Achievement
Hack-n-Slash

Object-Oriented Python (retired)

Achieved
Oct 22, 2016
Achievement
Python Inheritance

Object-Oriented Python (retired)

Achieved
Oct 22, 2016
Achievement
Python Objects

Object-Oriented Python (retired)

Achieved
Oct 22, 2016
Achievement
Letter Game App

Python Basics (2015)

Achieved
Oct 22, 2016
Achievement
Python Data Types

Python Basics (2015)

Achieved
Oct 22, 2016
Achievement
Number Game App

Python Basics (2015)

Achieved
Oct 22, 2016
Achievement
Shopping List App

Python Basics (2015)

Achieved
Oct 22, 2016
Achievement
Logic in Python

Python Basics (2015)

Achieved
Oct 22, 2016
Achievement
Python For Beginners

Python Basics (2015)

Achieved
Oct 22, 2016
Achievement
Django Models

Django Forms

Achieved
Oct 18, 2016
Achievement
Django Forms

Django Forms

Achieved
Oct 18, 2016
Achievement
Customizing Class-based Views

Django Class-based Views

Achieved
Oct 16, 2016
Achievement
Total Control

Django ORM

Achieved
Oct 16, 2016
Achievement
Basic ORM Usage

Django ORM

Achieved
Oct 15, 2016
Achievement
Same Old ORM

Django ORM

Achieved
Oct 12, 2016
Achievement
Building Custom Filters

Customizing Django Templates

Achieved
Oct 12, 2016
Achievement
Building Custom Tags

Customizing Django Templates

Achieved
Oct 12, 2016
Achievement
Template Tags and Filters

Customizing Django Templates

Achieved
Oct 11, 2016
Achievement
Final Details

Django Basics

Achieved
Oct 11, 2016
Achievement
Django Templates

Django Basics

Achieved
Oct 11, 2016
Achievement
Classy Views

Django Class-based Views

Achieved
Oct 10, 2016
Achievement
Model Administration

Django Basics

Achieved
Sep 3, 2016
Achievement
What a View

Django Basics

Achieved
Sep 3, 2016
Achievement
Say Hello to Django

Django Basics

Achieved
Aug 28, 2016
Achievement
Upgrading Stormy

Enhance a Weather App with Table Views

Achieved
Sep 19, 2015
Achievement
Introduction to Table Views

Enhance a Weather App with Table Views

Achieved
Sep 19, 2015
Achievement
Creating Flexible Objects with Protocols

Swift Protocols

Achieved
Sep 8, 2015
Achievement
Protocols

Swift Protocols

Achieved
Aug 29, 2015
Achievement
Exporting Designs

Sketch Basics

Achieved
Aug 22, 2015
Achievement
Sketch Features

Sketch Basics

Achieved
Aug 22, 2015
Achievement
Introducing Sketch

Sketch Basics

Achieved
Aug 22, 2015
Achievement
Refreshing the Data

Build a Weather App with Swift

Achieved
Jul 27, 2015
Achievement
Adding Weather Icons

Build a Weather App with Swift

Achieved
Jul 27, 2015
Achievement
Managing Complexity

Build a Weather App with Swift

Achieved
Jul 27, 2015
Achievement
Interacting With Data From the Web

Build a Weather App with Swift

Achieved
Jul 26, 2015
Achievement
Simple Data Structures

Build a Weather App with Swift

Achieved
Jul 26, 2015
Achievement
Closures in iOS

Swift Closures

Achieved
Jul 26, 2015
Achievement
Closures and Closure Expressions

Swift Closures

Achieved
Jul 26, 2015
Achievement
Functions as First Class Citizens

Swift Closures

Achieved
Jul 26, 2015
Achievement
Refactoring Our Code (Swift)

Build a Playlist Browser with Swift

Achieved
Jul 22, 2015
Achievement
Building the Master and Detail Views (Swift)

Build a Playlist Browser with Swift

Achieved
Jul 22, 2015
Achievement
Building a Music Library and Playlists (Swift)

Build a Playlist Browser with Swift

Achieved
Jul 22, 2015
Achievement
Variables and Constants

Swift Basics (retired)

Achieved
Jul 22, 2015
Achievement
Using a Navigation Controller With Segues (Swift)

Build a Playlist Browser with Swift

Achieved
Jun 23, 2015
Achievement
Working With Multiple View Controllers (Swift)

Build a Playlist Browser with Swift

Achieved
Jun 23, 2015
Achievement
Deploying to a Device

Build a Simple iPhone App with Swift

Achieved
Jun 22, 2015
Achievement
Debugging Our App

Build a Simple iPhone App with Swift

Achieved
Jun 22, 2015
Achievement
Improving Our User Interface

Build a Simple iPhone App with Swift

Achieved
Jun 22, 2015
Achievement
Using a Data Model

Build a Simple iPhone App with Swift

Achieved
Jun 22, 2015
Achievement
Views and View Controllers

Build a Simple iPhone App with Swift

Achieved
Jun 21, 2015
Achievement
Getting Started with Xcode

Build a Simple iPhone App with Swift

Achieved
Jun 13, 2015
Achievement
Swift Value vs Reference Types

Object-Oriented Swift

Achieved
Jun 13, 2015
Achievement
Swift Properties

Object-Oriented Swift

Achieved
Jun 13, 2015
Achievement
Swift Inheritance

Object-Oriented Swift

Achieved
Jun 13, 2015
Achievement
Swift Classes and Objects

Object-Oriented Swift

Achieved
Jun 13, 2015
Achievement
Swift Structs and their Methods

Swift Enums and Structs

Achieved
Jun 13, 2015
Achievement
Swift Structs

Swift Enums and Structs

Achieved
Jun 13, 2015
Achievement
Swift Enums and their Methods

Swift Enums and Structs

Achieved
Jun 13, 2015
Achievement
Swift Enums

Swift Enums and Structs

Achieved
Jun 13, 2015
Achievement
Swift Optionals

Swift Functions and Optionals

Achieved
Jun 13, 2015
Achievement
Swift Parameters and Tuples

Swift Functions and Optionals

Achieved
Jun 12, 2015
Achievement
Swift Functions

Swift Functions and Optionals

Achieved
Jun 12, 2015
Achievement
Custom ListViews

Android Lists and Adapters (2015)

Achieved
May 10, 2015
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Apr 19, 2015
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Apr 19, 2015
Achievement
Standard ListViews

Android Lists and Adapters (2015)

Achieved
Mar 22, 2015
Achievement
Updating the Data Model

Android Lists and Adapters (2015)

Achieved
Mar 10, 2015
Achievement
Rebuilding from Scratch

Build a Blog Reader Android App

Achieved
Feb 23, 2015
Achievement
Exploring the Master-Detail Template

Build a Blog Reader Android App

Achieved
Feb 22, 2015
Achievement
Hooking up the Model to the View

Build a Weather App (2015)

Achieved
Feb 22, 2015
Achievement
Building the Weather UI

Build a Weather App (2015)

Achieved
Feb 22, 2015
Achievement
Working with JSON

Build a Weather App (2015)

Achieved
Feb 12, 2015
Achievement
Concurrency and Error Handling

Build a Weather App (2015)

Achieved
Feb 9, 2015
Achievement
Networking

Build a Weather App (2015)

Achieved
Jan 23, 2015
Achievement
Exploring an API

Build a Weather App (2015)

Achieved
Jan 23, 2015
Achievement
Using Git for Android

Android Tools

Achieved
Jan 23, 2015
Achievement
Getting Started with Genymotion

Android Tools

Achieved
Jan 22, 2015
Achievement
Getting Started with Android Studio

Android Tools

Achieved
Jan 22, 2015
Achievement
Publishing on Google Play

Publish an Android App

Achieved
Jan 22, 2015
Achievement
Services and Dependencies

AngularJS

Achieved
Jan 20, 2015
Achievement
Finishing the User Interface

Build an Interactive Story App (Retired)

Achieved
Jan 20, 2015
Achievement
Delivering the MVP

Java Objects (Retired)

Achieved
Jan 18, 2015
Achievement
Creating the MVP

Java Objects (Retired)

Achieved
Jan 18, 2015
Achievement
Harnessing the Power of Objects

Java Objects (Retired)

Achieved
Jan 15, 2015
Achievement
Meet Objects

Java Objects (Retired)

Achieved
Jan 14, 2015
Achievement
The Model-View-Controller Pattern

Build an Interactive Story App (Retired)

Achieved
Jan 4, 2015
Achievement
Intents and Multiple Activities

Build an Interactive Story App (Retired)

Achieved
Dec 25, 2014
Achievement
User Input

Build an Interactive Story App (Retired)

Achieved
Dec 22, 2014
Achievement
Testing and Debugging

Build a Simple Android App (2014)

Achieved
Dec 21, 2014
Achievement
Improving Our Code

Build a Simple Android App (2014)

Achieved
Dec 21, 2014
Achievement
Improving Our Code

Build a Simple Android App (2014)

Achieved
Dec 21, 2014
Achievement
Coding the Fun Facts

Build a Simple Android App (2014)

Achieved
Dec 21, 2014
Achievement
Basic Android Programming

Build a Simple Android App (2014)

Achieved
Dec 19, 2014
Achievement
Creating the Initial Screen Layout

Build a Simple Android App (2014)

Achieved
Dec 18, 2014
Achievement
Getting Started with Android

Build a Simple Android App (2014)

Achieved
Dec 18, 2014
Achievement
Perfecting the Prototype

Java Basics

Achieved
Dec 18, 2014
Achievement
Using your New Tools

Java Basics

Achieved
Dec 18, 2014
Achievement
Getting Started with Java

Java Basics

Achieved
Dec 18, 2014
Achievement
Autoloading and Composer

PHP Standards and Best Practices

Achieved
Nov 18, 2014
Achievement
Databases and International Concerns

PHP Standards and Best Practices

Achieved
Nov 18, 2014
Achievement
Starting Right with PHP Best Practices

PHP Standards and Best Practices

Achieved
Nov 18, 2014
Achievement
Securing and Maintaining a MySQL Database

Database Foundations

Achieved
Sep 7, 2014
Achievement
SQL Calculating, Aggregating and Other Functions

Database Foundations

Achieved
Aug 16, 2014
Achievement
Joining Relational Data Between Tables in SQL

Database Foundations

Achieved
Aug 15, 2014
Achievement
Manipulating Schema with SQL

Database Foundations

Achieved
Aug 14, 2014
Achievement
Moving Forward with UX

UX Basics

Achieved
Aug 13, 2014
Achievement
Tools UXers Use

UX Basics

Achieved
Aug 13, 2014
Achievement
Relating Models

Laravel 4 Basics

Achieved
Aug 13, 2014
Achievement
Laravel CRUD

Laravel 4 Basics

Achieved
Aug 12, 2014
Achievement
Validation & Flash Messages

Laravel 4 Basics

Achieved
Aug 11, 2014
Achievement
Laravel Forms

Laravel 4 Basics

Achieved
Aug 10, 2014
Achievement
Laravel & Databases

Laravel 4 Basics

Achieved
Aug 10, 2014
Achievement
Laravel Controllers

Laravel 4 Basics

Achieved
Aug 9, 2014
Achievement
Laravel Project Setup

Laravel 4 Basics

Achieved
Aug 9, 2014
Achievement
How UXers Think

UX Basics

Achieved
Aug 5, 2014
Achievement
What Do User Experience Designers Do?

UX Basics

Achieved
Aug 5, 2014
Achievement
Laravel Getting Started

Laravel 4 Basics

Achieved
Aug 4, 2014
Achievement
Workflows

Git Basics

Achieved
Aug 3, 2014
Achievement
Working With Remote Repositories

Git Basics

Achieved
Aug 3, 2014
Achievement
Merging

Git Basics

Achieved
Aug 3, 2014
Achievement
Branches

Git Basics

Achieved
Aug 3, 2014
Achievement
Getting Started With Git

Git Basics

Achieved
Aug 3, 2014
Achievement
Why Version Control Matters

Git Basics

Achieved
Aug 3, 2014
Achievement
Installing Programs

Console Foundations

Achieved
Aug 3, 2014
Achievement
Environment and Redirection

Console Foundations

Achieved
Aug 3, 2014
Achievement
Console Processes

Console Foundations

Achieved
Aug 2, 2014
Achievement
Console Users and Permission

Console Foundations

Achieved
Aug 2, 2014
Achievement
Moving Around in the Console

Console Foundations

Achieved
Aug 1, 2014
Achievement
What is User Experience (UX)?

UX Basics

Achieved
Apr 16, 2014
Achievement
Web Typography

CSS Foundations

Achieved
Mar 24, 2014
Achievement
PHP Inheritance & Interfaces

Object-Oriented PHP Basics (Retired)

Achieved
Mar 14, 2014
Achievement
PHP Properties & Methods

Object-Oriented PHP Basics (Retired)

Achieved
Mar 14, 2014
Achievement
PHP Objects and Classes

Object-Oriented PHP Basics (Retired)

Achieved
Mar 11, 2014
Achievement
Backgrounds and Borders

CSS Foundations

Achieved
Feb 7, 2014
Achievement
CSS Box Model

CSS Foundations

Achieved
Feb 4, 2014
Achievement
Creating Tables and Manipulating Data with SQL

Database Foundations

Achieved
Jan 31, 2014
Achievement
Going Mobile

HTML Email Design

Achieved
Jan 29, 2014
Achievement
Designing Email with CSS

HTML Email Design

Achieved
Jan 23, 2014
Achievement
Coding HTML Email

HTML Email Design

Achieved
Jan 23, 2014
Achievement
HTML Email Basics

HTML Email Design

Achieved
Jan 20, 2014
Achievement
Integrating With Paypal

Build a Simple PHP Application

Achieved
Jan 19, 2014
Achievement
Reading Data from Databases with SQL

Database Foundations

Achieved
Dec 16, 2013
Achievement
Installing MySQL Server and MySQL Workbench

Database Foundations

Achieved
Dec 14, 2013
Achievement
Introduction to Data, Databases and SQL

Database Foundations

Achieved
Dec 14, 2013
Achievement
Design Foundations Final

Design Foundations

Achieved
Dec 9, 2013
Achievement
Becoming a Problem Solver

Design Foundations

Achieved
Dec 9, 2013
Achievement
Introduction to jQuery

Build an Interactive Website

Achieved
Dec 8, 2013
Achievement
Understanding Aesthetics

Design Foundations

Achieved
Dec 7, 2013
Achievement
Introduction to Design

Design Foundations

Achieved
Dec 5, 2013
Achievement
Limiting Results in Queries

Using PHP with MySQL

Achieved
Dec 3, 2013
Achievement
Email Marketing

How to Market Your Business

Achieved
Dec 2, 2013
Achievement
Improving Usability

Usability Foundations

Achieved
Nov 25, 2013
Achievement
Mobile Usability

Usability Foundations

Achieved
Nov 25, 2013
Achievement
Website Usability

Usability Foundations

Achieved
Nov 22, 2013
Achievement
What is Usability?

Usability Foundations

Achieved
Nov 21, 2013
Achievement
Using Relationship Tables

Using PHP with MySQL

Achieved
Nov 20, 2013
Achievement
Filtering Input for Queries

Using PHP with MySQL

Achieved
Nov 4, 2013
Achievement
Querying the Database

Using PHP with MySQL

Achieved
Oct 14, 2013
Achievement
Connecting to MySQL

Using PHP with MySQL

Achieved
Oct 8, 2013
Achievement
Text, Fonts, and Lists

CSS Foundations

Achieved
Sep 28, 2013
Achievement
Values and Units

CSS Foundations

Achieved
Sep 24, 2013
Achievement
Advanced Selectors

CSS Foundations

Achieved
Sep 23, 2013
Achievement
Selectors

CSS Foundations

Achieved
Apr 28, 2013
Achievement
Listing Inventory Items

Build a Simple PHP Application

Achieved
Apr 5, 2013
Achievement
Adding a Contact Form

Build a Simple PHP Application

Achieved
Apr 1, 2013
Achievement
Creating the Menu and Footer

Build a Simple PHP Application

Achieved
Mar 27, 2013
Achievement
JavaScript Objects

JavaScript Foundations

Achieved
Mar 26, 2013
Achievement
JavaScript Arrays

JavaScript Foundations

Achieved
Mar 14, 2013
Achievement
JavaScript Functions

JavaScript Foundations

Achieved
Mar 14, 2013
Achievement
JavaScript Numbers

JavaScript Foundations

Achieved
Feb 21, 2013
Achievement
jQuery Plugins

Build an Interactive Website

Achieved
Feb 14, 2013
Achievement
Form Validation and Manipulation

Build an Interactive Website

Achieved
Feb 14, 2013
Achievement
Adaptive Design

Build a Responsive Website

Achieved
Nov 13, 2012
Achievement
Social Media

How to Market Your Business

Achieved
Oct 23, 2012
Achievement
JavaScript Strings

JavaScript Foundations

Achieved
Oct 12, 2012
Achievement
Color Theory

Aesthetic Foundations

Achieved
Oct 12, 2012
Achievement
Principles

Aesthetic Foundations

Achieved
Oct 10, 2012
Achievement
Elements

Aesthetic Foundations

Achieved
Oct 3, 2012
Achievement
Ruby on Rails Authentication

Build a Simple Ruby on Rails Application

Achieved
Sep 20, 2012
Achievement
Rails Frontend Development

Build a Simple Ruby on Rails Application

Achieved
Sep 20, 2012
Achievement
Getting Started With Rails

Build a Simple Ruby on Rails Application

Achieved
Sep 20, 2012
Achievement
Introduction Variables

JavaScript Foundations

Achieved
Sep 20, 2012
Achievement
Newbie

Achieved
Sep 19, 2012