Jelger Kingma

Jelger Kingma

Member Since June 1, 2015

9,684

Total Points

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Learn more about when and how points are earned.

Skills & Experience

  • Company

    SkyByte

128 Achievements

  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Nov 1, 2017

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Sep 30, 2016

    Understanding Flexbox
  • Achievement

    Building the Recipe

    Object-Oriented PHP Basics

    Achieved

    Jul 19, 2016

    Building the Recipe
  • Achievement

    Understanding Classes

    Object-Oriented PHP Basics

    Achieved

    Jul 4, 2016

    Understanding Classes
  • Achievement

    Why Object-Oriented Programming?

    Object-Oriented PHP Basics

    Achieved

    Jun 23, 2016

    Why Object-Oriented Programming?
  • Achievement

    Error Handling

    PHP Standards and Best Practices

    Achieved

    Apr 6, 2016

    Error Handling
  • Achievement

    Getting the REST You Need

    REST API Basics

    Achieved

    Mar 25, 2016

    Getting the REST You Need
  • Achievement

    Creating Distributable OOP Packages

    PHP Standards and Best Practices

    Achieved

    Mar 17, 2016

    Creating Distributable OOP Packages
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Mar 12, 2016

    JavaScript Objects
  • Achievement

    Test Doubles

    PHP Testing

    Achieved

    Mar 12, 2016

    Test Doubles
  • Achievement

    Acceptance Tests

    PHP Testing

    Achieved

    Mar 12, 2016

    Acceptance Tests
  • Achievement

    Organizing your Tests

    PHP Testing

    Achieved

    Mar 4, 2016

    Organizing your Tests
  • Achievement

    Creating Your Tests

    PHP Testing

    Achieved

    Mar 4, 2016

    Creating Your Tests
  • Achievement

    Tools for Testers

    PHP Testing

    Achieved

    Mar 3, 2016

    Tools for Testers
  • Achievement

    How To Test Our Code

    PHP Testing

    Achieved

    Mar 3, 2016

    How To Test Our Code
  • Achievement

    Limiting Results in Queries

    Using PHP with MySQL

    Achieved

    Feb 26, 2016

    Limiting Results in Queries
  • Achievement

    Using Relationship Tables

    Using PHP with MySQL

    Achieved

    Feb 26, 2016

    Using Relationship Tables
  • Achievement

    Filtering Input for Queries

    Using PHP with MySQL

    Achieved

    Feb 26, 2016

    Filtering Input for Queries
  • Achievement

    Querying the Database

    Using PHP with MySQL

    Achieved

    Feb 24, 2016

    Querying the Database
  • Achievement

    Connecting to MySQL

    Using PHP with MySQL

    Achieved

    Feb 24, 2016

    Connecting to MySQL
  • Achievement

    Autoloading and Composer

    PHP Standards and Best Practices

    Achieved

    Feb 23, 2016

    Autoloading and Composer
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Feb 15, 2016

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Jan 27, 2016

    Getting Started with CSS Layout
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Jan 27, 2016

    Structuring Tables
  • Achievement

    Databases and International Concerns

    PHP Standards and Best Practices

    Achieved

    Jan 24, 2016

    Databases and International Concerns
  • Achievement

    Getting Started with Sass

    Sass Basics (retired)

    Achieved

    Jan 23, 2016

    Getting Started with Sass
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Jan 23, 2016

    Table Basics
  • Achievement

    Starting Right with PHP Best Practices

    PHP Standards and Best Practices

    Achieved

    Jan 22, 2016

    Starting Right with PHP Best Practices
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Jan 22, 2016

    JavaScript Arrays
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Jan 21, 2016

    Advanced Selectors
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Jan 21, 2016

    Choosing Options
  • Achievement

    Paginating a List: Model and View

    Enhancing a Simple PHP Application

    Achieved

    Jan 15, 2016

    Paginating a List: Model and View
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Jan 13, 2016

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Jan 11, 2016

    JavaScript Functions
  • Achievement

    Paginating a List: Controller

    Enhancing a Simple PHP Application

    Achieved

    Jan 10, 2016

    Paginating a List: Controller
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Jan 10, 2016

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Jan 9, 2016

    Form Basics
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Jan 9, 2016

    Selectors - Beyond the Basics
  • Achievement

    Adding Search: Model

    Enhancing a Simple PHP Application

    Achieved

    Jan 8, 2016

    Adding Search: Model
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Jan 8, 2016

    Fundamental Concepts
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Jan 7, 2016

    JavaScript Conditional Statements
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Jan 7, 2016

    Designing with the Latest Features
  • Achievement

    Adding Search: Controller & View

    Enhancing a Simple PHP Application

    Achieved

    Jan 6, 2016

    Adding Search: Controller & View
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Jan 6, 2016

    Basic Layout
  • Achievement

    Refactoring the Codebase

    Enhancing a Simple PHP Application

    Achieved

    Jan 4, 2016

    Refactoring the Codebase
  • Achievement

    Cleaning URLs with Rewrite Rules

    Enhancing a Simple PHP Application

    Achieved

    Jan 4, 2016

    Cleaning URLs with Rewrite Rules
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Jan 4, 2016

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Jan 4, 2016

    JavaScript Variables
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Jan 2, 2016

    The Box Model
  • Achievement

    Cleaning URLs with Subfolders

    Enhancing a Simple PHP Application

    Achieved

    Dec 30, 2015

    Cleaning URLs with Subfolders
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Dec 29, 2015

    JavaScript Loops
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Dec 29, 2015

    Understanding Values and Units
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Dec 22, 2015

    Introducing JavaScript
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Dec 22, 2015

    Basic Selectors
  • Achievement

    Integrating Validation Errors

    Enhancing a Simple PHP Application

    Achieved

    Dec 22, 2015

    Integrating Validation Errors
  • Achievement

    Laravel Controllers

    Laravel 4 Basics

    Achieved

    Dec 19, 2015

    Laravel Controllers
  • Achievement

    Python For Beginners

    Python Basics (2015)

    Achieved

    Dec 18, 2015

    Python For Beginners
  • Achievement

    Laravel Project Setup

    Laravel 4 Basics

    Achieved

    Dec 17, 2015

    Laravel Project Setup
  • Achievement

    Laravel Getting Started

    Laravel 4 Basics

    Achieved

    Dec 17, 2015

    Laravel Getting Started
  • Achievement

    Workflows

    Git Basics

    Achieved

    Dec 16, 2015

    Workflows
  • Achievement

    Working With Remote Repositories

    Git Basics

    Achieved

    Dec 16, 2015

    Working With Remote Repositories
  • Achievement

    Merging

    Git Basics

    Achieved

    Dec 15, 2015

    Merging
  • Achievement

    Branches

    Git Basics

    Achieved

    Dec 15, 2015

    Branches
  • Achievement

    Getting Started With Git

    Git Basics

    Achieved

    Dec 15, 2015

    Getting Started With Git
  • Achievement

    Why Version Control Matters

    Git Basics

    Achieved

    Dec 15, 2015

    Why Version Control Matters
  • Achievement

    Installing Programs

    Console Foundations

    Achieved

    Dec 15, 2015

    Installing Programs
  • Achievement

    Environment and Redirection

    Console Foundations

    Achieved

    Dec 15, 2015

    Environment and Redirection
  • Achievement

    Console Processes

    Console Foundations

    Achieved

    Dec 14, 2015

    Console Processes
  • Achievement

    Console Users and Permission

    Console Foundations

    Achieved

    Dec 11, 2015

    Console Users and Permission
  • Achievement

    Moving Around in the Console

    Console Foundations

    Achieved

    Dec 10, 2015

    Moving Around in the Console
  • Achievement

    Database Security

    PHP & Databases with PDO

    Achieved

    Dec 10, 2015

    Database Security
  • Achievement

    Queries & Results

    PHP & Databases with PDO

    Achieved

    Dec 8, 2015

    Queries & Results
  • Achievement

    Getting Started with PDO

    PHP & Databases with PDO

    Achieved

    Dec 7, 2015

    Getting Started with PDO
  • Achievement

    Securing and Maintaining a MySQL Database

    Database Foundations

    Achieved

    Dec 6, 2015

    Securing and Maintaining a MySQL Database
  • Achievement

    SQL Calculating, Aggregating and Other Functions

    Database Foundations

    Achieved

    Dec 5, 2015

    SQL Calculating, Aggregating and Other Functions
  • Achievement

    Joining Relational Data Between Tables in SQL

    Database Foundations

    Achieved

    Dec 4, 2015

    Joining Relational Data Between Tables in SQL
  • Achievement

    Manipulating Schema with SQL

    Database Foundations

    Achieved

    Dec 4, 2015

    Manipulating Schema with SQL
  • Achievement

    Creating Tables and Manipulating Data with SQL

    Database Foundations

    Achieved

    Dec 4, 2015

    Creating Tables and Manipulating Data with SQL
  • Achievement

    Reading Data from Databases with SQL

    Database Foundations

    Achieved

    Nov 30, 2015

    Reading Data from Databases with SQL
  • Achievement

    Installing MySQL Server and MySQL Workbench

    Database Foundations

    Achieved

    Nov 30, 2015

    Installing MySQL Server and MySQL Workbench
  • Achievement

    Introduction to Data, Databases and SQL

    Database Foundations

    Achieved

    Nov 30, 2015

    Introduction to Data, Databases and SQL
  • Achievement

    Working with PHP Functions

    Build a Simple PHP Application

    Achieved

    Nov 30, 2015

    Working with PHP Functions
  • Achievement

    Integrating With Paypal

    Build a Simple PHP Application

    Achieved

    Nov 29, 2015

    Integrating With Paypal
  • Achievement

    Listing Inventory Items

    Build a Simple PHP Application

    Achieved

    Nov 27, 2015

    Listing Inventory Items
  • Achievement

    Adding a Contact Form

    Build a Simple PHP Application

    Achieved

    Nov 27, 2015

    Adding a Contact Form
  • Achievement

    Creating the Menu and Footer

    Build a Simple PHP Application

    Achieved

    Nov 27, 2015

    Creating the Menu and Footer
  • Achievement

    Getting Started with PHP

    Build a Simple PHP Application

    Achieved

    Nov 26, 2015

    Getting Started with PHP
  • Achievement

    Dependency Management

    Building Websites with PHP

    Achieved

    Nov 25, 2015

    Dependency Management
  • Achievement

    PHP Inheritance & Interfaces

    Object-Oriented PHP Basics (Retired)

    Achieved

    Nov 25, 2015

    PHP Inheritance & Interfaces
  • Achievement

    PHP Properties & Methods

    Object-Oriented PHP Basics (Retired)

    Achieved

    Nov 25, 2015

    PHP Properties & Methods
  • Achievement

    PHP Objects and Classes

    Object-Oriented PHP Basics (Retired)

    Achieved

    Nov 22, 2015

    PHP Objects and Classes
  • Achievement

    PHP Internal Functions

    PHP Functions

    Achieved

    Nov 22, 2015

    PHP Internal Functions
  • Achievement

    PHP Returns & Closures

    PHP Functions

    Achieved

    Nov 19, 2015

    PHP Returns & Closures
  • Achievement

    PHP Functions Basics

    PHP Functions

    Achieved

    Nov 18, 2015

    PHP Functions Basics
  • Achievement

    PHP Loops

    PHP Basics (Retired)

    Achieved

    Nov 18, 2015

    PHP Loops
  • Achievement

    PHP Conditionals

    PHP Basics (Retired)

    Achieved

    Nov 17, 2015

    PHP Conditionals
  • Achievement

    Harnessing the Power of Objects

    Java Objects (Retired)

    Achieved

    Jul 15, 2015

    Harnessing the Power of Objects
  • Achievement

    WordPress Themes

    How to Make a Website with WordPress

    Achieved

    Jul 6, 2015

    WordPress Themes
  • Achievement

    Installing Wordpress

    How to Make a Website with WordPress

    Achieved

    Jul 6, 2015

    Installing Wordpress
  • Achievement

    WordPress Community Management

    WordPress for Website Owners

    Achieved

    Jul 6, 2015

    WordPress Community Management
  • Achievement

    Working with Media in WordPress

    WordPress for Website Owners

    Achieved

    Jul 6, 2015

    Working with Media in WordPress
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Jul 5, 2015

    Getting Started with CSS
  • Achievement

    PHP Datatypes

    PHP Basics (Retired)

    Achieved

    Jul 5, 2015

    PHP Datatypes
  • Achievement

    Introduction to SEO

    SEO Basics

    Achieved

    Jun 30, 2015

    Introduction to SEO
  • Achievement

    PHP Data & Structure

    PHP Basics (Retired)

    Achieved

    Jun 23, 2015

    PHP Data & Structure
  • Achievement

    PHP Getting Started

    PHP Basics (Retired)

    Achieved

    Jun 23, 2015

    PHP Getting Started
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Jun 22, 2015

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Jun 22, 2015

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Jun 22, 2015

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Jun 17, 2015

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Jun 11, 2015

    Styling Web Pages and Navigation
  • Achievement

    Adding and Editing Content

    WordPress for Website Owners

    Achieved

    Jun 10, 2015

    Adding and Editing Content
  • Achievement

    Meet Objects

    Java Objects (Retired)

    Achieved

    Jun 10, 2015

    Meet Objects
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Jun 10, 2015

    Customizing Colors and Fonts
  • Achievement

    Collections

    Swift Basics (retired)

    Achieved

    Jun 10, 2015

    Collections
  • Achievement

    Operators

    Swift Basics (retired)

    Achieved

    Jun 9, 2015

    Operators
  • Achievement

    Types

    Swift Basics (retired)

    Achieved

    Jun 9, 2015

    Types
  • Achievement

    Variables and Constants

    Swift Basics (retired)

    Achieved

    Jun 9, 2015

    Variables and Constants
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Jun 7, 2015

    CSS: Cascading Style Sheets
  • Achievement

    Perfecting the Prototype

    Java Basics

    Achieved

    Jun 7, 2015

    Perfecting the Prototype
  • Achievement

    Using your New Tools

    Java Basics

    Achieved

    Jun 7, 2015

    Using your New Tools
  • Achievement

    Getting Started with Java

    Java Basics

    Achieved

    Jun 3, 2015

    Getting Started with Java
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Jun 2, 2015

    Creating HTML Content
  • Achievement

    Getting a WordPress Site

    WordPress for Website Owners

    Achieved

    Jun 2, 2015

    Getting a WordPress Site
  • Achievement

    Getting Started with WordPress

    Getting Started with WordPress

    Achieved

    Jun 2, 2015

    Getting Started with WordPress
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Jun 2, 2015

    HTML First
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Jun 1, 2015

    Beginning HTML and CSS
  • Achievement

    Newbie

    Achieved

    Jun 1, 2015

    Newbie