David Harper

David Harper

Member Since September 3, 2015

11,720

Total Points

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Learn more about when and how points are earned.

Skills & Experience

  • Company

    Talking Leaf Company

145 Achievements

  • Achievement

    PHP Email Form Errors

    Build a Basic PHP Website (2018)

    Achieved

    Aug 12, 2016

    PHP Email Form Errors
  • Achievement

    PHP Email Forms

    Build a Basic PHP Website (2018)

    Achieved

    Aug 11, 2016

    PHP Email Forms
  • Achievement

    PHP Inventory

    Build a Basic PHP Website (2018)

    Achieved

    Aug 10, 2016

    PHP Inventory
  • Achievement

    PHP Includes

    Build a Basic PHP Website (2018)

    Achieved

    Jul 21, 2016

    PHP Includes
  • Achievement

    PHP Internal Functions

    PHP Functions

    Achieved

    Jul 13, 2016

    PHP Internal Functions
  • Achievement

    PHP Returns & Closures

    PHP Functions

    Achieved

    Jul 13, 2016

    PHP Returns & Closures
  • Achievement

    PHP Functions Basics

    PHP Functions

    Achieved

    Jul 13, 2016

    PHP Functions Basics
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    Jul 13, 2016

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Jul 13, 2016

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    Jul 13, 2016

    HTML: The Structural Foundation of Web Pages and Applications
  • Achievement

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Jul 13, 2016

    Getting Familiar with HTML and CSS
  • Achievement

    PHP Loops

    PHP Basics (Retired)

    Achieved

    Jul 13, 2016

    PHP Loops
  • Achievement

    PHP Conditionals

    PHP Basics (Retired)

    Achieved

    Jul 13, 2016

    PHP Conditionals
  • Achievement

    PHP Datatypes

    PHP Basics (Retired)

    Achieved

    Jul 12, 2016

    PHP Datatypes
  • Achievement

    PHP Data & Structure

    PHP Basics (Retired)

    Achieved

    Jul 12, 2016

    PHP Data & Structure
  • Achievement

    PHP Getting Started

    PHP Basics (Retired)

    Achieved

    Jul 12, 2016

    PHP Getting Started
  • Achievement

    Combine and Minify Assets

    Introduction to Front End Performance Optimization

    Achieved

    Jul 12, 2016

    Combine and Minify Assets
  • Achievement

    Optimize Assets

    Introduction to Front End Performance Optimization

    Achieved

    Jul 12, 2016

    Optimize Assets
  • Achievement

    Measuring Performance

    Introduction to Front End Performance Optimization

    Achieved

    Jul 12, 2016

    Measuring Performance
  • Achievement

    Planning for Performance

    Introduction to Front End Performance Optimization

    Achieved

    Jul 12, 2016

    Planning for Performance
  • Achievement

    Workflows

    Git Basics

    Achieved

    Jul 12, 2016

    Workflows
  • Achievement

    Working With Remote Repositories

    Git Basics

    Achieved

    Jul 12, 2016

    Working With Remote Repositories
  • Achievement

    Merging

    Git Basics

    Achieved

    Jul 12, 2016

    Merging
  • Achievement

    Branches

    Git Basics

    Achieved

    Jul 12, 2016

    Branches
  • Achievement

    Getting Started With Git

    Git Basics

    Achieved

    Jul 12, 2016

    Getting Started With Git
  • Achievement

    Why Version Control Matters

    Git Basics

    Achieved

    Jul 12, 2016

    Why Version Control Matters
  • Achievement

    Installing Programs

    Console Foundations

    Achieved

    Jul 12, 2016

    Installing Programs
  • Achievement

    Environment and Redirection

    Console Foundations

    Achieved

    Jul 12, 2016

    Environment and Redirection
  • Achievement

    Console Processes

    Console Foundations

    Achieved

    Jul 11, 2016

    Console Processes
  • Achievement

    Console Users and Permission

    Console Foundations

    Achieved

    Jul 11, 2016

    Console Users and Permission
  • Achievement

    Moving Around in the Console

    Console Foundations

    Achieved

    Jul 11, 2016

    Moving Around in the Console
  • Achievement

    Chrome DevTools Basics

    Website Optimization

    Achieved

    Jul 11, 2016

    Chrome DevTools Basics
  • Achievement

    Web Apps

    Accessibility

    Achieved

    Jul 10, 2016

    Web Apps
  • Achievement

    Websites

    Accessibility

    Achieved

    Jul 10, 2016

    Websites
  • Achievement

    Introduction

    Accessibility

    Achieved

    Jul 10, 2016

    Introduction
  • Achievement

    Quiz Practice Project

    Object-Oriented JavaScript (2015)

    Achieved

    Jun 28, 2016

    Quiz Practice Project
  • Achievement

    Prototypal Inheritance

    Object-Oriented JavaScript (2015)

    Achieved

    Jun 28, 2016

    Prototypal Inheritance
  • Achievement

    Constructor Functions & Prototypes

    Object-Oriented JavaScript (2015)

    Achieved

    Jun 22, 2016

    Constructor Functions & Prototypes
  • Achievement

    Introduction to Methods

    Object-Oriented JavaScript (2015)

    Achieved

    Jun 13, 2016

    Introduction to Methods
  • Achievement

    Building Forms with Bootstrap

    Bootstrap 4 Basics (Retired)

    Achieved

    Jun 10, 2016

    Building Forms with Bootstrap
  • Achievement

    Using Bootstrap Components

    Bootstrap 4 Basics (Retired)

    Achieved

    Jun 10, 2016

    Using Bootstrap Components
  • Achievement

    Responsive Layouts with the Bootstrap Grid

    Bootstrap 4 Basics (Retired)

    Achieved

    Jun 8, 2016

    Responsive Layouts with the Bootstrap Grid
  • Achievement

    Getting to Know Bootstrap 4

    Bootstrap 4 Basics (Retired)

    Achieved

    May 17, 2016

    Getting to Know Bootstrap 4
  • Achievement

    AJAX and APIs

    AJAX Basics (retiring)

    Achieved

    May 7, 2016

    AJAX and APIs
  • Achievement

    jQuery and AJAX

    AJAX Basics (retiring)

    Achieved

    May 2, 2016

    jQuery and AJAX
  • Achievement

    Programming AJAX

    AJAX Basics (retiring)

    Achieved

    Apr 29, 2016

    Programming AJAX
  • Achievement

    AJAX Concepts

    AJAX Basics (retiring)

    Achieved

    Apr 28, 2016

    AJAX Concepts
  • Achievement

    Custom Media Players

    HTML Video and Audio (Retired)

    Achieved

    Apr 27, 2016

    Custom Media Players
  • Achievement

    Captioning Video

    HTML Video and Audio (Retired)

    Achieved

    Apr 27, 2016

    Captioning Video
  • Achievement

    Media Basics

    HTML Video and Audio (Retired)

    Achieved

    Apr 6, 2016

    Media Basics
  • Achievement

    Traversing and Manipulating the DOM with JavaScript

    Interactive Web Pages with JavaScript

    Achieved

    Apr 6, 2016

    Traversing and Manipulating the DOM with JavaScript
  • Achievement

    Selecting Elements and Adding Events with JavaScript

    Interactive Web Pages with JavaScript

    Achieved

    Apr 6, 2016

    Selecting Elements and Adding Events with JavaScript
  • Achievement

    JavaScript and the DOM

    Interactive Web Pages with JavaScript

    Achieved

    Apr 5, 2016

    JavaScript and the DOM
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Apr 5, 2016

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Mar 30, 2016

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Mar 30, 2016

    Understanding Flexbox
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Mar 18, 2016

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Mar 18, 2016

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Mar 18, 2016

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Mar 18, 2016

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Mar 18, 2016

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Mar 1, 2016

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Feb 25, 2016

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Feb 23, 2016

    Getting Started with CSS Layout
  • Achievement

    Creating a Simple Drawing Application

    jQuery Basics (2014)

    Achieved

    Feb 23, 2016

    Creating a Simple Drawing Application
  • Achievement

    Creating a Password Confirmation Form

    jQuery Basics (2014)

    Achieved

    Nov 5, 2015

    Creating a Password Confirmation Form
  • Achievement

    Creating a Mobile Drop Down Menu

    jQuery Basics (2014)

    Achieved

    Oct 26, 2015

    Creating a Mobile Drop Down Menu
  • Achievement

    Creating a Simple Lightbox

    jQuery Basics (2014)

    Achieved

    Oct 26, 2015

    Creating a Simple Lightbox
  • Achievement

    Creating a Spoiler Revealer

    jQuery Basics (2014)

    Achieved

    Oct 23, 2015

    Creating a Spoiler Revealer
  • Achievement

    Introduction to jQuery

    jQuery Basics (2014)

    Achieved

    Oct 23, 2015

    Introduction to jQuery
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Oct 22, 2015

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Oct 22, 2015

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Oct 22, 2015

    JavaScript Loops
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Oct 14, 2015

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Oct 13, 2015

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Sep 30, 2015

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Sep 29, 2015

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Sep 28, 2015

    Introducing JavaScript
  • Achievement

    Advanced Sass Concepts

    Sass Basics (retired)

    Achieved

    Sep 28, 2015

    Advanced Sass Concepts
  • Achievement

    Speeding up Workflow With Sass

    Sass Basics (retired)

    Achieved

    Sep 25, 2015

    Speeding up Workflow With Sass
  • Achievement

    Variables, Mixins, and Extending Selectors

    Sass Basics (retired)

    Achieved

    Sep 25, 2015

    Variables, Mixins, and Extending Selectors
  • Achievement

    Getting Started with Sass

    Sass Basics (retired)

    Achieved

    Sep 24, 2015

    Getting Started with Sass
  • Achievement

    Better SEO Through Tools

    SEO Basics

    Achieved

    Sep 23, 2015

    Better SEO Through Tools
  • Achievement

    Better SEO Through Code

    SEO Basics

    Achieved

    Sep 23, 2015

    Better SEO Through Code
  • Achievement

    Better SEO Through Content

    SEO Basics

    Achieved

    Sep 23, 2015

    Better SEO Through Content
  • Achievement

    Introduction to SEO

    SEO Basics

    Achieved

    Sep 23, 2015

    Introduction to SEO
  • Achievement

    Moving Forward with UX

    UX Basics

    Achieved

    Sep 23, 2015

    Moving Forward with UX
  • Achievement

    Tools UXers Use

    UX Basics

    Achieved

    Sep 23, 2015

    Tools UXers Use
  • Achievement

    How UXers Think

    UX Basics

    Achieved

    Sep 23, 2015

    How UXers Think
  • Achievement

    What Do User Experience Designers Do?

    UX Basics

    Achieved

    Sep 23, 2015

    What Do User Experience Designers Do?
  • Achievement

    What is User Experience (UX)?

    UX Basics

    Achieved

    Sep 23, 2015

    What is User Experience (UX)?
  • Achievement

    Finalizing the Project

    Brand Identity Basics

    Achieved

    Sep 23, 2015

    Finalizing the Project
  • Achievement

    Case Studies and Examples

    Brand Identity Basics

    Achieved

    Sep 23, 2015

    Case Studies and Examples
  • Achievement

    The Brand Identity Design Process

    Brand Identity Basics

    Achieved

    Sep 23, 2015

    The Brand Identity Design Process
  • Achievement

    Introduction to Brand Identity

    Brand Identity Basics

    Achieved

    Sep 23, 2015

    Introduction to Brand Identity
  • Achievement

    The Logo Sprint

    Logo Design Basics

    Achieved

    Sep 23, 2015

    The Logo Sprint
  • Achievement

    Logo Design 101

    Logo Design Basics

    Achieved

    Sep 23, 2015

    Logo Design 101
  • Achievement

    Creating Home Page Assets

    Illustrator Foundations

    Achieved

    Sep 22, 2015

    Creating Home Page Assets
  • Achievement

    Applying Effects

    Illustrator Foundations

    Achieved

    Sep 22, 2015

    Applying Effects
  • Achievement

    How to Draw in Illustrator

    Illustrator Foundations

    Achieved

    Sep 22, 2015

    How to Draw in Illustrator
  • Achievement

    Adding Color and Type

    Illustrator Foundations

    Achieved

    Sep 22, 2015

    Adding Color and Type
  • Achievement

    Creating an Icon

    Illustrator Foundations

    Achieved

    Sep 21, 2015

    Creating an Icon
  • Achievement

    Introduction to Illustrator

    Illustrator Foundations

    Achieved

    Sep 21, 2015

    Introduction to Illustrator
  • Achievement

    Workflow Basics

    Photoshop Foundations

    Achieved

    Sep 21, 2015

    Workflow Basics
  • Achievement

    Slices & Save for Web

    Photoshop Foundations

    Achieved

    Sep 21, 2015

    Slices & Save for Web
  • Achievement

    Vector Shapes

    Photoshop Foundations

    Achieved

    Sep 21, 2015

    Vector Shapes
  • Achievement

    Type Tools

    Photoshop Foundations

    Achieved

    Sep 21, 2015

    Type Tools
  • Achievement

    Masks Basics

    Photoshop Foundations

    Achieved

    Sep 19, 2015

    Masks Basics
  • Achievement

    Layer Basics

    Photoshop Foundations

    Achieved

    Sep 19, 2015

    Layer Basics
  • Achievement

    Workspace Basics

    Photoshop Foundations

    Achieved

    Sep 19, 2015

    Workspace Basics
  • Achievement

    Design Foundations Final

    Design Foundations

    Achieved

    Sep 19, 2015

    Design Foundations Final
  • Achievement

    Becoming a Problem Solver

    Design Foundations

    Achieved

    Sep 19, 2015

    Becoming a Problem Solver
  • Achievement

    Understanding Aesthetics

    Design Foundations

    Achieved

    Sep 19, 2015

    Understanding Aesthetics
  • Achievement

    Introduction to Design

    Design Foundations

    Achieved

    Sep 18, 2015

    Introduction to Design
  • Achievement

    Grid Layout

    CSS Layout Techniques

    Achieved

    Sep 17, 2015

    Grid Layout
  • Achievement

    Flexbox Layout

    CSS Layout Techniques

    Achieved

    Sep 17, 2015

    Flexbox Layout
  • Achievement

    Positioning Schemes

    CSS Layout Techniques

    Achieved

    Sep 16, 2015

    Positioning Schemes
  • Achievement

    Float Layout

    CSS Layout Techniques

    Achieved

    Sep 16, 2015

    Float Layout
  • Achievement

    Display Modes

    CSS Layout Techniques

    Achieved

    Sep 14, 2015

    Display Modes
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Sep 14, 2015

    Structuring Tables
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Sep 14, 2015

    Table Basics
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Sep 14, 2015

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Sep 14, 2015

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Sep 14, 2015

    Form Basics
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Sep 11, 2015

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Sep 10, 2015

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Sep 10, 2015

    Selectors - Beyond the Basics
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Sep 9, 2015

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Sep 9, 2015

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Sep 9, 2015

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Sep 9, 2015

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Sep 8, 2015

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Sep 8, 2015

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Sep 8, 2015

    Getting Started with CSS
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Sep 7, 2015

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Sep 7, 2015

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Sep 6, 2015

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Sep 4, 2015

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Sep 4, 2015

    Styling Web Pages and Navigation
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Sep 3, 2015

    Customizing Colors and Fonts
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Sep 3, 2015

    CSS: Cascading Style Sheets
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Sep 3, 2015

    Creating HTML Content
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Sep 3, 2015

    HTML First
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Sep 3, 2015

    Beginning HTML and CSS
  • Achievement

    Newbie

    Achieved

    Sep 3, 2015

    Newbie