Haydn Ellen

Haydn Ellen

Cornwall, United Kingdom

Skills & Experience

  • Spoken Languages

    • English
  • Looking for work

    Yes

232 Achievements

  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Debugging, Best Practices, and Production
  • Refactoring with Sass
  • Installing Sass and Setting up the Project
  • Designing Interfaces in PHP
  • jQuery and AJAX
  • Combine and Minify Assets
  • Optimize Assets
  • Measuring Performance
  • Planning for Performance
  • Getting Work Done
  • A Lifestyle Choice
  • Growing Your Business
  • Client Services
  • Sales and Pitching
  • Marketing and Promotion
  • Programming AJAX
  • AJAX Concepts
  • Extending the Family
  • Inheritance
  • Building a Collection
  • Building the Recipe
  • Understanding Classes
  • Why Object-Oriented Programming?
  • Flexible Sized Grids
  • Introducing Grid Layout
  • Security: Solutions
  • Security: Concerns
  • Security in Practice
  • Common Attacks and Defenses
  • Hello Internet!
  • Getting Started with Data Science
  • Python: Inheritance
  • Python: Instant Objects
  • Dungeon Game 2
  • Python Sets
  • Python Tuples
  • Python Dictionaries
  • Python Slices
  • Python Lists
  • Letter Game App
  • Number Game App
  • Shopping List App
  • Logic in Python
  • Python Data Types
  • Python For Beginners
  • What is Authentication
  • Parsing Specific Formats
  • Basic File Handling
  • How WordPress Plugins Work
  • Hooking Into WordPress Plugins
  • Action Functions in WordPress
  • Getting to Know Bootstrap 4
  • Filter Functions in WordPress
  • An Overview of Hooks in WordPress
  • Extending WooCommerce
  • Managing Orders in WooCommerce
  • Managing Products in WooCommerce
  • Setting Up WooCommerce
  • Introduction to Ecommerce with WordPress
  • How it Works
  • Creating the Screen Layout
  • Getting Started with Android
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Delivering the MVP
  • Creating the MVP
  • Harnessing the Power of Objects
  • Meet Objects
  • Harnessing the Power of Objects
  • Meet Objects
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • PHPDB Stage 3: Using Relational Data
  • PHPDB Stage 2: Querying the Database with PHP
  • PHPDB Stage 1: Databases and PHP
  • Introduction to Typography
  • JavaScript and the DOM
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • Creating a Mobile Drop Down Menu
  • Creating a Simple Lightbox
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Structuring Tables
  • Table Basics
  • Art Direction with the Picture Element
  • Image Delivery with Srcset and Sizes
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • JavaScript Objects
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • JavaScript Arrays
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • JavaScript Loops
  • Finding the Data You Want
  • Getting Data from a Database
  • Data, Databases and SQL
  • Getting the REST You Need
  • A Template Hierarchy Review
  • Media Templates in WordPress
  • Installing Programs
  • Environment and Redirection
  • Custom Post Type Templates
  • Archive Templates in WordPress
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • Page and Post Templates in WordPress
  • Homepage Templates in WordPress
  • Core WordPress Theme Files
  • How WordPress Templates Work
  • Finishing Your WordPress Theme
  • Custom Homepage Templates in WordPress
  • Adding a Blog to a WordPress Theme
  • Custom Post Type Templates
  • Workflows
  • Working With Remote Repositories
  • Merging
  • Branches
  • Getting Started With Git
  • Why Version Control Matters
  •  Child Themes
  • The Genesis Marketplace
  • Configuring a Genesis Child Theme
  • An Overview of the Genesis Framework
  • An Overview of WordPress Frameworks
  • Building Out WordPress Navigation
  • Building Page Templates in WordPress
  • The WordPress Codex
  • Video Marketing
  • Email Marketing
  • Search Engine Optimization
  • The Production Server
  • The Staging Server
  • The Local Development Environment
  • WordPress User Roles
  • The WordPress Loop
  • WordPress Header and Footer Templates
  • Working with CSS and JS in WordPress Themes
  • Starting a WordPress Theme
  • More Advanced PHP for WordPress
  • PHP Basics for WordPress
  • Introduction to PHP for WordPress
  • WordPress Plugin Best Practices
  • Widgets and Custom Menus
  • Custom Post Types and Fields
  • Customizing WordPress Themes
  • WordPress Themes
  • Installing Wordpress
  • Local WordPress Development
  • Choosing Options
  • Usability Testing
  • Organizing Forms
  • Form Basics
  • JavaScript Functions
  • Usability Basics
  • Custom Dashboard Widgets
  • Controlling Admin Navigation
  • Customizing the Login Screen
  • Admin Color Schemes
  • Getting Started with WordPress
  • Fundamental Concepts
  • Designing with the Latest Features
  • Social Media
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Debugging HTML and CSS Problems
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Sharing a Website
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Local Python
  • Ins & Outs
  • Say Hello to Python
  • Laravel Getting Started
  • Database Security
  • Queries & Results
  • Getting Started with PDO
  • Getting Started with CSS
  • Moving Beyond the Blog
  • Finding Business
  • Creating Content
  • Introduction to Blogging
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • PHP Loops
  • PHP Conditionals
  • PHP Datatypes
  • PHP Data & Structure
  • PHP Getting Started
  • JavaScript Variables
  • Introducing JavaScript
  • Next Steps
  • Financing Our Company
  • Welcome to the Treehouse Club
  • Selling Your Product
  • Marketing Your Product
  • Product Market Fit
  • Discovery
  • Better SEO Through Tools
  • Better SEO Through Code
  • Better SEO Through Content
  • Introduction to SEO
  • Newbie