Harold van Velsen

Harold van Velsen

Member Since March 6, 2017

7,321

Total Points

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90 Achievements

  • Achievement

    Unit Converter

    PHP Basics

    Achieved

    Aug 4, 2017

    Unit Converter
  • Achievement

    ES2015 Basics

    Introducing ES2015

    Achieved

    Aug 2, 2017

    ES2015 Basics
  • Achievement

    Getting to Know PHP

    PHP Basics

    Achieved

    Aug 2, 2017

    Getting to Know PHP
  • Achievement

    Dependency Management

    Building Websites with PHP

    Achieved

    Jul 31, 2017

    Dependency Management
  • Achievement

    Callbacks and the DOM

    Callback Functions in JavaScript

    Achieved

    Jul 21, 2017

    Callbacks and the DOM
  • Achievement

    Callbacks with Timers

    Callback Functions in JavaScript

    Achieved

    Jul 21, 2017

    Callbacks with Timers
  • Achievement

    Introduction to Callback Functions

    Callback Functions in JavaScript

    Achieved

    Jul 21, 2017

    Introduction to Callback Functions
  • Achievement

    Getting Started with Sass

    Sass Basics

    Achieved

    Jul 15, 2017

    Getting Started with Sass
  • Achievement

    Structuring Your Content

    HTML Basics

    Achieved

    Jul 14, 2017

    Structuring Your Content
  • Achievement

    Getting Started With HTML

    HTML Basics

    Achieved

    Jul 12, 2017

    Getting Started With HTML
  • Achievement

    Prototypal Inheritance

    Object-Oriented JavaScript (2015)

    Achieved

    Jul 11, 2017

    Prototypal Inheritance
  • Achievement

    Constructor Functions & Prototypes

    Object-Oriented JavaScript (2015)

    Achieved

    Jul 10, 2017

    Constructor Functions & Prototypes
  • Achievement

    Introduction to Methods

    Object-Oriented JavaScript (2015)

    Achieved

    Jul 10, 2017

    Introduction to Methods
  • Achievement

    Creating a Simple Lightbox

    jQuery Basics (2014)

    Achieved

    Jun 29, 2017

    Creating a Simple Lightbox
  • Achievement

    Creating a Spoiler Revealer

    jQuery Basics (2014)

    Achieved

    Jun 27, 2017

    Creating a Spoiler Revealer
  • Achievement

    Introduction to jQuery

    jQuery Basics (2014)

    Achieved

    Jun 27, 2017

    Introduction to jQuery
  • Achievement

    Transitions and Transforms

    Animating SVG with CSS

    Achieved

    Jun 23, 2017

    Transitions and Transforms
  • Achievement

    Using a jQuery Carousel

    Using jQuery Plugins

    Achieved

    Jun 22, 2017

    Using a jQuery Carousel
  • Achievement

    Add a Sticky Navigation Bar

    Using jQuery Plugins

    Achieved

    Jun 8, 2017

    Add a Sticky Navigation Bar
  • Achievement

    Introducing jQuery Plugins

    Using jQuery Plugins

    Achieved

    May 29, 2017

    Introducing jQuery Plugins
  • Achievement

    DOM Traversal

    Introduction to jQuery

    Achieved

    May 28, 2017

    DOM Traversal
  • Achievement

    DOM Manipulation

    Introduction to jQuery

    Achieved

    May 27, 2017

    DOM Manipulation
  • Achievement

    Events

    Introduction to jQuery

    Achieved

    May 27, 2017

    Events
  • Achievement

    Hello, jQuery!

    Introduction to jQuery

    Achieved

    May 25, 2017

    Hello, jQuery!
  • Achievement

    Improving the Application Code

    DOM Scripting By Example

    Achieved

    May 25, 2017

    Improving the Application Code
  • Achievement

    Editing and Filtering Names

    DOM Scripting By Example

    Achieved

    May 23, 2017

    Editing and Filtering Names
  • Achievement

    Adding and Removing Names

    DOM Scripting By Example

    Achieved

    May 20, 2017

    Adding and Removing Names
  • Achievement

    Traversing the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    May 18, 2017

    Traversing the DOM
  • Achievement

    Responding to User Interaction

    Interacting with the DOM

    Achieved

    May 16, 2017

    Responding to User Interaction
  • Achievement

    Making Changes to the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    May 13, 2017

    Making Changes to the DOM
  • Achievement

    Getting a Handle on the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    May 9, 2017

    Getting a Handle on the DOM
  • Achievement

    The Browser Environment

    JavaScript and the DOM (Retiring)

    Achieved

    May 6, 2017

    The Browser Environment
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Apr 30, 2017

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Apr 26, 2017

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Apr 22, 2017

    JavaScript Loops
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Apr 21, 2017

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Apr 19, 2017

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Apr 14, 2017

    JavaScript Numbers
  • Achievement

    Creating an SVG

    SVG Basics

    Achieved

    Apr 11, 2017

    Creating an SVG
  • Achievement

    Introduction to SVG

    SVG Basics

    Achieved

    Apr 10, 2017

    Introduction to SVG
  • Achievement

    Speeding up Workflow With Sass

    Sass Basics (retired)

    Achieved

    Apr 9, 2017

    Speeding up Workflow With Sass
  • Achievement

    Variables, Mixins, and Extending Selectors

    Sass Basics (retired)

    Achieved

    Apr 9, 2017

    Variables, Mixins, and Extending Selectors
  • Achievement

    Getting Started with Sass

    Sass Basics (retired)

    Achieved

    Apr 8, 2017

    Getting Started with Sass
  • Achievement

    Debugging, Best Practices, and Production

    CSS to Sass

    Achieved

    Apr 7, 2017

    Debugging, Best Practices, and Production
  • Achievement

    Refactoring with Sass

    CSS to Sass

    Achieved

    Apr 7, 2017

    Refactoring with Sass
  • Achievement

    Installing Sass and Setting up the Project

    CSS to Sass

    Achieved

    Apr 6, 2017

    Installing Sass and Setting up the Project
  • Achievement

    Adding 3D Effects with CSS

    CSS Transitions and Transforms

    Achieved

    Apr 6, 2017

    Adding 3D Effects with CSS
  • Achievement

    Getting Started with CSS Transforms

    CSS Transitions and Transforms

    Achieved

    Apr 4, 2017

    Getting Started with CSS Transforms
  • Achievement

    Transition Timing Functions and Delays

    CSS Transitions and Transforms

    Achieved

    Apr 1, 2017

    Transition Timing Functions and Delays
  • Achievement

    Getting Started with CSS Transitions

    CSS Transitions and Transforms

    Achieved

    Apr 1, 2017

    Getting Started with CSS Transitions
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Mar 29, 2017

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Mar 28, 2017

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Mar 27, 2017

    Understanding Flexbox
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Mar 27, 2017

    Structuring Tables
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Mar 27, 2017

    Table Basics
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Mar 25, 2017

    Choosing Options
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Mar 24, 2017

    JavaScript Variables
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Mar 23, 2017

    Organizing Forms
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Mar 22, 2017

    Introducing JavaScript
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Mar 22, 2017

    Form Basics
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Mar 22, 2017

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Mar 22, 2017

    Media Queries
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Mar 20, 2017

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Mar 18, 2017

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Mar 17, 2017

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Mar 17, 2017

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Mar 17, 2017

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Mar 17, 2017

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Mar 16, 2017

    Controlling Layout with CSS Display Modes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Mar 16, 2017

    Selectors - Beyond the Basics
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Mar 15, 2017

    Getting Started with CSS Layout
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Mar 14, 2017

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Mar 14, 2017

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Mar 11, 2017

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Mar 10, 2017

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Mar 10, 2017

    Understanding Values and Units
  • Achievement

    Introduction to Front-End Frameworks

    Framework Basics

    Achieved

    Mar 9, 2017

    Introduction to Front-End Frameworks
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Mar 9, 2017

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Mar 8, 2017

    Getting Started with CSS
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Mar 8, 2017

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Mar 8, 2017

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Mar 8, 2017

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Mar 8, 2017

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Mar 7, 2017

    Styling Web Pages and Navigation
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Mar 7, 2017

    Customizing Colors and Fonts
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Mar 7, 2017

    CSS: Cascading Style Sheets
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Mar 7, 2017

    Creating HTML Content
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Mar 7, 2017

    HTML First
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Mar 7, 2017

    Beginning HTML and CSS
  • Achievement

    Newbie

    Achieved

    Mar 6, 2017

    Newbie