🫡 Treehouse for Military offers discounts to Veterans, service members and their families!

🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

Curious which AI tools Treehouse developers love? ⚙️ Check them out!

⭐Get support and network on our Discord server! ⭐

Henk Jan Borghuis

Member Since November 16, 2014

11,986

Total Points

•
2,571

Development Tools

2571 pts
Achievements

0 pts
Forum
•
2,179

PHP

2179 pts
Achievements

0 pts
Forum
•
1,975

Python

1975 pts
Achievements

0 pts
Forum
•
1,344

CSS

1344 pts
Achievements

0 pts
Forum
•
989

HTML

989 pts
Achievements

0 pts
Forum
•
776

Security

776 pts
Achievements

0 pts
Forum
•
400

Digital Literacy

400 pts
Achievements

0 pts
Forum
•
390

JavaScript

390 pts
Achievements

0 pts
Forum
•
261

Design

261 pts
Achievements

0 pts
Forum
•
234

APIs

234 pts
Achievements

0 pts
Forum
•
98

21st Century Skills

98 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.

160 Achievements

Achievement
Buggy Logs

Write Better Python

Achieved
Jul 31, 2020
Achievement
Cleaner Code

Write Better Python

Achieved
Jul 28, 2020
Achievement
Dice Roller

Object-Oriented Python

Achieved
Jul 27, 2020
Achievement
Python: Advanced Objects

Object-Oriented Python

Achieved
Jul 22, 2020
Achievement
Python: Inheritance

Object-Oriented Python

Achieved
Jul 22, 2020
Achievement
Python: Instant Objects

Object-Oriented Python

Achieved
Jul 14, 2020
Achievement
Iterating and Packing with Dictionaries

Introducing Dictionaries

Achieved
Jul 9, 2020
Achievement
Introducing Dictionaries

Introducing Dictionaries

Achieved
Jul 9, 2020
Achievement
Sequence Operations

Python Sequences

Achieved
Jul 9, 2020
Achievement
Sequence Iterations

Python Sequences

Achieved
Jul 9, 2020
Achievement
Packing and Unpacking

Functions, Packing, and Unpacking

Achieved
Jul 8, 2020
Achievement
Getting Info In and Out of Functions

Functions, Packing, and Unpacking

Achieved
Jul 8, 2020
Achievement
Introduction to Functions

Functions, Packing, and Unpacking

Achieved
Jul 8, 2020
Achievement
Getting to Know Tuples

Introducing Tuples

Achieved
Jul 8, 2020
Achievement
Build an Application

Introducing Lists

Achieved
Jul 8, 2020
Achievement
Branches on Git Hosting Services

Git Branches and Merging

Achieved
Jul 6, 2020
Achievement
Remote Branches

Git Branches and Merging

Achieved
Jul 6, 2020
Achievement
Merging

Git Branches and Merging

Achieved
Jul 6, 2020
Achievement
Branches

Git Branches and Merging

Achieved
Jul 6, 2020
Achievement
GitHub and Other Remote Repositories

Introduction to Git

Achieved
Jun 30, 2020
Achievement
Managing Committed Files

Introduction to Git

Achieved
Jun 30, 2020
Achievement
First Commits

Introduction to Git

Achieved
Jun 30, 2020
Achievement
Using Lists

Introducing Lists

Achieved
Jun 29, 2020
Achievement
Meet Lists

Introducing Lists

Achieved
Jun 28, 2020
Achievement
Practice Functions

Practice Creating and Using Functions in Python

Achieved
Jun 28, 2020
Achievement
All Together Now

Python Basics

Achieved
Jun 28, 2020
Achievement
Functions and Looping

Python Basics

Achieved
Jun 26, 2020
Achievement
Imposter Syndrome

Imposter Syndrome

Achieved
Jun 8, 2020
Achievement
Types and Branching

Python Basics

Achieved
May 18, 2020
Achievement
Meet Python

Python Basics

Achieved
May 14, 2020
Achievement
Reusable GraphQL

Introduction to GraphQL

Achieved
May 8, 2020
Achievement
Making Changes with Mutations

Introduction to GraphQL

Achieved
May 7, 2020
Achievement
Fetching Data with Queries

Introduction to GraphQL

Achieved
May 7, 2020
Achievement
Getting Started with GraphQL

Introduction to GraphQL

Achieved
May 7, 2020
Achievement
Getting the REST You Need 2

Introduction to REST APIs

Achieved
May 4, 2020
Achievement
How to Make Wireframes in Adobe XD

Introduction to Wireframing

Achieved
Apr 30, 2020
Achievement
How to Make Wireframes in Sketch

Achieved
Apr 30, 2020
Achievement
How to Make Wireframes in Balsamiq

Introduction to Wireframing

Achieved
Apr 30, 2020
Achievement
How to Make Wireframes on Paper

Introduction to Wireframing

Achieved
Apr 30, 2020
Achievement
What is Wireframing?

Introduction to Wireframing

Achieved
Apr 16, 2020
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Apr 16, 2020
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Apr 16, 2020
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Apr 16, 2020
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Apr 16, 2020
Achievement
Introducing JavaScript

Introducing JavaScript

Achieved
Apr 16, 2020
Achievement
Finishing the Game

Introducing JavaScript

Achieved
Apr 16, 2020
Achievement
Treehouse Club - JavaScript

Treehouse Club: JavaScript

Achieved
Apr 15, 2020
Achievement
Treehouse Club - CSS

Treehouse Club: CSS

Achieved
Apr 15, 2020
Achievement
Welcome to the Treehouse Club

Treehouse Club: HTML

Achieved
Apr 15, 2020
Achievement
The Internet

How the Internet Works

Achieved
Apr 15, 2020
Achievement
Vulnerabilities: Configuration, Components, and Logging

OWASP Top 10 Vulnerabilities

Achieved
Apr 15, 2020
Achievement
Vulnerabilities: Authentication, Access, and Sensitive Data

OWASP Top 10 Vulnerabilities

Achieved
Apr 15, 2020
Achievement
Vulnerabilities: Injection, XSS, CSRF

OWASP Top 10 Vulnerabilities

Achieved
Apr 15, 2020
Achievement
The OWASP Top 10 Explained

OWASP Top 10 Vulnerabilities

Achieved
Apr 9, 2020
Achievement
Maintaining Secure Web Apps

Introduction to Application Security

Achieved
Apr 7, 2020
Achievement
Protecting Data and Keeping Attackers Out

Introduction to Application Security

Achieved
Apr 7, 2020
Achievement
Why Protect Your Web Apps

Introduction to Application Security

Achieved
Apr 7, 2020
Achievement
Security in Practice

Security Literacy

Achieved
Apr 7, 2020
Achievement
Common Attacks and Defenses

Security Literacy

Achieved
Apr 7, 2020
Achievement
Hello Internet!

Security Literacy

Achieved
Apr 7, 2020
Achievement
Security: Solutions

Introduction to Data Security

Achieved
Apr 3, 2020
Achievement
Security: Concerns

Introduction to Data Security

Achieved
Apr 3, 2020
Achievement
WWW

How the Web Works

Achieved
Jun 29, 2015
Achievement
Scrum Artifacts

Scrum Basics

Achieved
Jun 24, 2015
Achievement
Scrum Events

Scrum Basics

Achieved
Jun 24, 2015
Achievement
Introducing Scrum

Scrum Basics

Achieved
Jun 24, 2015
Achievement
What is Agile?

Scrum Basics

Achieved
Jun 24, 2015
Achievement
Introduction Variables

JavaScript Foundations

Achieved
Mar 5, 2015
Achievement
Computer Languages

Computer Basics

Achieved
Feb 19, 2015
Achievement
Computer Basics

Computer Basics

Achieved
Feb 19, 2015
Achievement
The WordPress Codex

The WordPress Codex

Achieved
Dec 23, 2014
Achievement
Getting Started with WordPress

Getting Started with WordPress

Achieved
Dec 23, 2014
Achievement
Media Queries

Unused CSS Stages

Achieved
Dec 21, 2014
Achievement
CSS Animations

Unused CSS Stages

Achieved
Dec 21, 2014
Achievement
Transitions and Transforms

Unused CSS Stages

Achieved
Dec 21, 2014
Achievement
Flexbox and Multi-Column Layout

Unused CSS Stages

Achieved
Dec 20, 2014
Achievement
Gradients

CSS Foundations

Achieved
Dec 20, 2014
Achievement
Web Typography

CSS Foundations

Achieved
Dec 20, 2014
Achievement
Backgrounds and Borders

CSS Foundations

Achieved
Dec 15, 2014
Achievement
CSS Box Model

CSS Foundations

Achieved
Dec 15, 2014
Achievement
Text, Fonts, and Lists

CSS Foundations

Achieved
Dec 14, 2014
Achievement
Values and Units

CSS Foundations

Achieved
Dec 14, 2014
Achievement
Advanced Selectors

CSS Foundations

Achieved
Dec 13, 2014
Achievement
Autoloading and Composer

PHP Standards and Best Practices

Achieved
Dec 11, 2014
Achievement
Databases and International Concerns

PHP Standards and Best Practices

Achieved
Dec 11, 2014
Achievement
Starting Right with PHP Best Practices

PHP Standards and Best Practices

Achieved
Dec 11, 2014
Achievement
DNS Basics

Technology Foundations

Achieved
Dec 11, 2014
Achievement
Graphic Basics

Technology Foundations

Achieved
Dec 10, 2014
Achievement
Website Basics

Website Basics

Achieved
Dec 10, 2014
Achievement
Selectors

CSS Foundations

Achieved
Dec 10, 2014
Achievement
Getting Started with CSS

CSS Foundations

Achieved
Dec 10, 2014
Achievement
Limiting Results in Queries

Using PHP with MySQL

Achieved
Dec 8, 2014
Achievement
Using Relationship Tables

Using PHP with MySQL

Achieved
Dec 8, 2014
Achievement
Filtering Input for Queries

Using PHP with MySQL

Achieved
Dec 8, 2014
Achievement
Querying the Database

Using PHP with MySQL

Achieved
Dec 8, 2014
Achievement
Connecting to MySQL

Using PHP with MySQL

Achieved
Dec 7, 2014
Achievement
Securing and Maintaining a MySQL Database

Database Foundations

Achieved
Dec 7, 2014
Achievement
Manipulating Schema with SQL

Database Foundations

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

Database Foundations

Achieved
Dec 7, 2014
Achievement
Creating Tables and Manipulating Data with SQL

Database Foundations

Achieved
Dec 6, 2014
Achievement
Joining Relational Data Between Tables in SQL

Database Foundations

Achieved
Dec 6, 2014
Achievement
Reading Data from Databases with SQL

Database Foundations

Achieved
Dec 6, 2014
Achievement
Installing MySQL Server and MySQL Workbench

Database Foundations

Achieved
Dec 6, 2014
Achievement
Introduction to Data, Databases and SQL

Database Foundations

Achieved
Dec 6, 2014
Achievement
Workflows

Git Basics

Achieved
Dec 6, 2014
Achievement
Working With Remote Repositories

Git Basics

Achieved
Dec 6, 2014
Achievement
Merging

Git Basics

Achieved
Dec 4, 2014
Achievement
Branches

Git Basics

Achieved
Dec 4, 2014
Achievement
Getting Started With Git

Git Basics

Achieved
Dec 4, 2014
Achievement
Why Version Control Matters

Git Basics

Achieved
Dec 4, 2014
Achievement
Paginating a List: Model and View

Enhancing a Simple PHP Application

Achieved
Dec 3, 2014
Achievement
Paginating a List: Controller

Enhancing a Simple PHP Application

Achieved
Dec 3, 2014
Achievement
Adding Search: Model

Enhancing a Simple PHP Application

Achieved
Dec 3, 2014
Achievement
Adding Search: Controller & View

Enhancing a Simple PHP Application

Achieved
Dec 2, 2014
Achievement
Refactoring the Codebase

Enhancing a Simple PHP Application

Achieved
Nov 30, 2014
Achievement
Cleaning URLs with Rewrite Rules

Enhancing a Simple PHP Application

Achieved
Nov 30, 2014
Achievement
Cleaning URLs with Subfolders

Enhancing a Simple PHP Application

Achieved
Nov 30, 2014
Achievement
Integrating Validation Errors

Enhancing a Simple PHP Application

Achieved
Nov 29, 2014
Achievement
Installing Programs

Console Foundations

Achieved
Nov 29, 2014
Achievement
Environment and Redirection

Console Foundations

Achieved
Nov 29, 2014
Achievement
Console Processes

Console Foundations

Achieved
Nov 28, 2014
Achievement
Console Users and Permission

Console Foundations

Achieved
Nov 28, 2014
Achievement
Moving Around in the Console

Console Foundations

Achieved
Nov 27, 2014
Achievement
Forms

HTML

Achieved
Nov 27, 2014
Achievement
Tables

HTML

Achieved
Nov 27, 2014
Achievement
Objects

HTML

Achieved
Nov 27, 2014
Achievement
Links

HTML

Achieved
Nov 27, 2014
Achievement
Lists

HTML

Achieved
Nov 27, 2014
Achievement
Text

HTML

Achieved
Nov 26, 2014
Achievement
Introduction

HTML

Achieved
Nov 26, 2014
Achievement
Functions

Introduction to Programming

Achieved
Nov 26, 2014
Achievement
Objects and Arrays

Introduction to Programming

Achieved
Nov 25, 2014
Achievement
Control Structures

Introduction to Programming

Achieved
Nov 25, 2014
Achievement
Basics

Introduction to Programming

Achieved
Nov 25, 2014
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Nov 24, 2014
Achievement
Sharing a Website

How to Make a Website

Achieved
Nov 24, 2014
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Nov 24, 2014
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
Nov 24, 2014
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
Nov 23, 2014
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
Nov 23, 2014
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Nov 23, 2014
Achievement
Creating HTML Content

How to Make a Website

Achieved
Nov 22, 2014
Achievement
HTML First

How to Make a Website

Achieved
Nov 22, 2014
Achievement
Simple PHP Application: Wrapping Up The Project

Build a Simple PHP Application

Achieved
Nov 22, 2014
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Nov 20, 2014
Achievement
Working with PHP Functions

Build a Simple PHP Application

Achieved
Nov 17, 2014
Achievement
Integrating With Paypal

Build a Simple PHP Application

Achieved
Nov 17, 2014
Achievement
Listing Inventory Items

Build a Simple PHP Application

Achieved
Nov 17, 2014
Achievement
Adding a Contact Form

Build a Simple PHP Application

Achieved
Nov 16, 2014
Achievement
Creating the Menu and Footer

Build a Simple PHP Application

Achieved
Nov 16, 2014
Achievement
Getting Started with PHP

Build a Simple PHP Application

Achieved
Nov 16, 2014
Achievement
PHP Inheritance & Interfaces

Object-Oriented PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
PHP Properties & Methods

Object-Oriented PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
PHP Objects and Classes

Object-Oriented PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
PHP Loops

PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
PHP Conditionals

PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
PHP Datatypes

PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
PHP Data & Structure

PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
PHP Getting Started

PHP Basics (Retired)

Achieved
Nov 16, 2014
Achievement
Newbie

Achieved
Nov 16, 2014