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Darryl Holtby

Seagrave, ON

16,170

Total Points

•
3,351

JavaScript

3351 pts
Achievements

0 pts
Forum
•
2,014

C#

2014 pts
Achievements

0 pts
Forum
•
1,883

CSS

1883 pts
Achievements

0 pts
Forum
•
1,320

HTML

1320 pts
Achievements

0 pts
Forum
•
850

Business

850 pts
Achievements

0 pts
Forum
•
841

Development Tools

841 pts
Achievements

0 pts
Forum
•
367

PHP

367 pts
Achievements

0 pts
Forum
•
77

Data Analysis

77 pts
Achievements

0 pts
Forum
•
64

Digital Literacy

64 pts
Achievements

0 pts
Forum
•
42

Security

42 pts
Achievements

0 pts
Forum
•
15

Python

15 pts
Achievements

0 pts
Forum
•
1

Java

1 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.

Skills & Experience

Company

My Brother Darryl

205 Achievements

Achievement
Security: Concerns

Introduction to Data Security

Achieved
Apr 16, 2024
Achievement
Breaking Down Data Analysis

Intro to Data Analysis

Achieved
Apr 16, 2024
Achievement
Protecting and Sharing Your Work

Copyright Basics

Achieved
Apr 16, 2024
Achievement
Licensing

Copyright Basics

Achieved
Apr 16, 2024
Achievement
Add Reusable Logic to Your Sass

Sass Basics

Achieved
Mar 12, 2024
Achievement
Write Smart and Efficient CSS with Sass

Sass Basics

Achieved
Mar 12, 2024
Achievement
Improve Your Workflow with Sass

Sass Basics

Achieved
Mar 12, 2024
Achievement
Data Reader

C# Streams and Data Processing

Achieved
Jan 2, 2024
Achievement
Abstraction

Intermediate C#

Achieved
Dec 14, 2023
Achievement
System.Object

Intermediate C#

Achieved
Dec 14, 2023
Achievement
Polymorphism

Intermediate C#

Achieved
Nov 16, 2023
Achievement
Loops and Final Touches

C# Objects

Achieved
Nov 16, 2023
Achievement
Encapsulation with Properties

C# Objects

Achieved
Nov 16, 2023
Achievement
Encapsulation and Arrays

C# Objects

Achieved
Nov 1, 2023
Achievement
Inheritance

C# Objects

Achieved
Oct 30, 2023
Achievement
Methods

C# Objects

Achieved
Oct 24, 2023
Achievement
If Statements

C# Basics

Achieved
Oct 19, 2023
Achievement
Numbers

C# Basics

Achieved
Oct 19, 2023
Achievement
Strings

C# Basics

Achieved
Oct 19, 2023
Achievement
Methods

C# Basics

Achieved
Oct 17, 2023
Achievement
C# Syntax

C# Basics

Achieved
May 8, 2023
Achievement
Unit Testing

Unit Testing in C#

Achieved
Nov 2, 2022
Achievement
Stateful Components

React Basics (2018)

Achieved
Nov 18, 2021
Achievement
Introducing Props

React Basics (2018)

Achieved
Nov 18, 2021
Achievement
Thinking in Components

React Basics (2018)

Achieved
Nov 16, 2021
Achievement
First Steps in React

React Basics (2018)

Achieved
Nov 16, 2021
Achievement
PHP on the Web

PHP Basics

Achieved
Feb 18, 2020
Achievement
Daily Exercise Program

PHP Basics

Achieved
Feb 18, 2020
Achievement
Unit Converter

PHP Basics

Achieved
Feb 18, 2020
Achievement
Getting to Know PHP

PHP Basics

Achieved
Feb 17, 2020
Achievement
What is Asynchronous Programming?

Asynchronous Programming with JavaScript

Achieved
Oct 1, 2019
Achievement
Programming AJAX

AJAX Basics

Achieved
Sep 16, 2019
Achievement
AJAX Concepts

AJAX Basics

Achieved
Sep 16, 2019
Achievement
An Overview of Hooks in WordPress

WordPress Hooks - Actions and Filters

Achieved
Apr 23, 2019
Achievement
Introducing ASP.NET Identity

User Authentication with ASP.NET Identity

Achieved
Apr 4, 2019
Achievement
Project Setup

ASP.NET MVC Basics

Achieved
Mar 29, 2019
Achievement
Object-Oriented Programming

C# Objects

Achieved
Mar 18, 2019
Achievement
Getting Started with Sass

Sass Basics

Achieved
Mar 7, 2019
Achievement
Installing WordPress Locally

Installing WordPress Locally

Achieved
Mar 7, 2019
Achievement
What Is WordPress?

What Is WordPress?

Achieved
Mar 6, 2019
Achievement
Perfect

C# Basics (Retired)

Achieved
Mar 5, 2019
Achievement
Perform

C# Basics (Retired)

Achieved
Mar 4, 2019
Achievement
Console I/O

C# Basics (Retired)

Achieved
Mar 4, 2019
Achievement
Prepare and Plan

C# Basics (Retired)

Achieved
Mar 4, 2019
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Jan 29, 2019
Achievement
Testing for Accessibility

Web Accessibility Compliance

Achieved
Jan 28, 2019
Achievement
Mobile Accessibility

Web Accessibility Compliance

Achieved
Jan 28, 2019
Achievement
Accessible UI Patterns

Web Accessibility Compliance

Achieved
Jan 28, 2019
Achievement
Semantic HTML and WAI-ARIA

Web Accessibility Compliance

Achieved
Jan 28, 2019
Achievement
WCAG 2.0 (and Other Standards)

Web Accessibility Compliance

Achieved
Jan 28, 2019
Achievement
Access for Everybody

Web Accessibility Compliance

Achieved
Jan 28, 2019
Achievement
Getters and Setters

Object-Oriented JavaScript

Achieved
Jan 28, 2019
Achievement
Working with Classes in JavaScript

Object-Oriented JavaScript

Achieved
Jan 21, 2019
Achievement
Object Basics

Object-Oriented JavaScript

Achieved
Jan 21, 2019
Achievement
Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achieved
Jan 15, 2019
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Jan 7, 2019
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Jan 2, 2019
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Dec 30, 2018
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Dec 30, 2018
Achievement
Captioning Video

HTML Video and Audio

Achieved
Dec 30, 2018
Achievement
Media Basics

HTML Video and Audio

Achieved
Dec 30, 2018
Achievement
Structuring Tables

HTML Tables

Achieved
Dec 30, 2018
Achievement
Table Basics

HTML Tables

Achieved
Dec 30, 2018
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Dec 28, 2018
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Dec 28, 2018
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Dec 28, 2018
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Dec 28, 2018
Achievement
Building Forms With Bootstrap

Bootstrap Basics

Achieved
Dec 28, 2018
Achievement
Using Bootstrap Components

Bootstrap Basics

Achieved
Dec 28, 2018
Achievement
Responsive Layouts With the Bootstrap Grid

Bootstrap Basics

Achieved
Dec 27, 2018
Achievement
Getting to Know Bootstrap 4

Bootstrap Basics

Achieved
Nov 12, 2018
Achievement
Working with jQuery Collections (2017)

jQuery Basics

Achieved
Nov 12, 2018
Achievement
Understanding jQuery Events and DOM Traversal (2017)

jQuery Basics

Achieved
Oct 12, 2018
Achievement
Introducing jQuery (2017)

jQuery Basics

Achieved
Oct 9, 2018
Achievement
Advanced Selectors

CSS Selectors

Achieved
Oct 8, 2018
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Oct 5, 2018
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Oct 5, 2018
Achievement
Traversing the DOM

JavaScript and the DOM (Retiring)

Achieved
Oct 5, 2018
Achievement
Responding to User Interaction

Interacting with the DOM

Achieved
Oct 4, 2018
Achievement
Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achieved
Sep 25, 2018
Achievement
Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achieved
Sep 17, 2018
Achievement
The Browser Environment

JavaScript and the DOM (Retiring)

Achieved
Sep 17, 2018
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Sep 17, 2018
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Sep 10, 2018
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Sep 4, 2018
Achievement
Choosing Options

HTML Forms

Achieved
Aug 29, 2018
Achievement
Organizing Forms

HTML Forms

Achieved
Aug 29, 2018
Achievement
Form Basics

HTML Forms

Achieved
Aug 29, 2018
Achievement
Building a Layout with Flexbox

CSS Flexbox Layout

Achieved
Aug 29, 2018
Achievement
Flexbox Properties

CSS Flexbox Layout

Achieved
Aug 29, 2018
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Aug 28, 2018
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Aug 28, 2018
Achievement
Media Queries

Responsive Layouts

Achieved
Aug 28, 2018
Achievement
Responsive Theory

Responsive Layouts

Achieved
Aug 28, 2018
Achievement
Positioning Page Content

CSS Layout Basics

Achieved
Aug 28, 2018
Achievement
CSS Layout Project

CSS Layout Basics

Achieved
Aug 28, 2018
Achievement
Page Layout with the Float Property

CSS Layout Basics

Achieved
Aug 28, 2018
Achievement
Controlling Layout with CSS Display Modes

CSS Layout Basics

Achieved
Aug 28, 2018
Achievement
Getting Started with CSS Layout

CSS Layout Basics

Achieved
Aug 28, 2018
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Aug 24, 2018
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Aug 23, 2018
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Aug 21, 2018
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Aug 21, 2018
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Aug 21, 2018
Achievement
The Box Model

CSS Basics (2014)

Achieved
Aug 20, 2018
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Aug 20, 2018
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Aug 20, 2018
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Aug 20, 2018
Achievement
Going Further with HTML

HTML Basics

Achieved
Aug 20, 2018
Achievement
Images, Text and Links

HTML Basics

Achieved
Aug 20, 2018
Achievement
Structuring Your Content

HTML Basics

Achieved
Aug 20, 2018
Achievement
Getting Started With HTML

HTML Basics

Achieved
Aug 20, 2018
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Aug 20, 2018
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Aug 15, 2018
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Aug 15, 2018
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Aug 15, 2018
Achievement
Stateful Components

React Basics (retired)

Achieved
Sep 9, 2016
Achievement
Thinking in Components

React Basics (retired)

Achieved
Sep 8, 2016
Achievement
First Steps in React

React Basics (retired)

Achieved
Sep 8, 2016
Achievement
A Template Hierarchy Review

The WordPress Template Hierarchy

Achieved
Jul 29, 2016
Achievement
Media Templates in WordPress

The WordPress Template Hierarchy

Achieved
Jul 29, 2016
Achievement
Custom Post Type Templates

The WordPress Template Hierarchy

Achieved
Jul 29, 2016
Achievement
Archive Templates in WordPress

The WordPress Template Hierarchy

Achieved
Jun 27, 2016
Achievement
Page and Post Templates in WordPress

The WordPress Template Hierarchy

Achieved
Jun 27, 2016
Achievement
Homepage Templates in WordPress

The WordPress Template Hierarchy

Achieved
Jun 27, 2016
Achievement
Core WordPress Theme Files

The WordPress Template Hierarchy

Achieved
Jun 17, 2016
Achievement
How WordPress Templates Work

The WordPress Template Hierarchy

Achieved
Jun 13, 2016
Achievement
Interacting With Data From the Web

Build a Weather App with Swift

Achieved
May 13, 2016
Achievement
Simple Data Structures

Build a Weather App with Swift

Achieved
May 12, 2016
Achievement
Refactoring Our Code (Swift)

Build a Playlist Browser with Swift

Achieved
May 12, 2016
Achievement
Building the Master and Detail Views (Swift)

Build a Playlist Browser with Swift

Achieved
May 11, 2016
Achievement
Building a Music Library and Playlists (Swift)

Build a Playlist Browser with Swift

Achieved
May 11, 2016
Achievement
Using a Navigation Controller With Segues (Swift)

Build a Playlist Browser with Swift

Achieved
May 10, 2016
Achievement
Working With Multiple View Controllers (Swift)

Build a Playlist Browser with Swift

Achieved
May 9, 2016
Achievement
An Introduction to Swift Programming

Swift 2.0 Basics

Achieved
May 3, 2016
Achievement
Finishing Your WordPress Theme

WordPress Theme Development

Achieved
Apr 26, 2016
Achievement
Custom Homepage Templates in WordPress

WordPress Theme Development

Achieved
Apr 26, 2016
Achievement
Adding a Blog to a WordPress Theme

WordPress Theme Development

Achieved
Apr 26, 2016
Achievement
Custom Post Type Templates

WordPress Theme Development

Achieved
Apr 14, 2016
Achievement
Building Out WordPress Navigation

WordPress Theme Development

Achieved
Apr 14, 2016
Achievement
Building Page Templates in WordPress

WordPress Theme Development

Achieved
Apr 14, 2016
Achievement
The WordPress Loop

WordPress Theme Development

Achieved
Apr 14, 2016
Achievement
WordPress Header and Footer Templates

WordPress Theme Development

Achieved
Apr 14, 2016
Achievement
Working with CSS and JS in WordPress Themes

WordPress Theme Development

Achieved
Apr 14, 2016
Achievement
Starting a WordPress Theme

WordPress Theme Development

Achieved
Apr 14, 2016
Achievement
More Advanced PHP for WordPress

PHP for WordPress

Achieved
Apr 14, 2016
Achievement
PHP Basics for WordPress

PHP for WordPress

Achieved
Apr 14, 2016
Achievement
Introduction to PHP for WordPress

PHP for WordPress

Achieved
Apr 13, 2016
Achievement
Local WordPress Development

Local WordPress Development

Achieved
Apr 13, 2016
Achievement
WordPress Plugin Best Practices

How to Make a Website with WordPress

Achieved
Apr 12, 2016
Achievement
Widgets and Custom Menus

How to Make a Website with WordPress

Achieved
Apr 12, 2016
Achievement
Custom Post Types and Fields

How to Make a Website with WordPress

Achieved
Apr 12, 2016
Achievement
Customizing WordPress Themes

How to Make a Website with WordPress

Achieved
Apr 12, 2016
Achievement
WordPress Themes

How to Make a Website with WordPress

Achieved
Apr 12, 2016
Achievement
Installing Wordpress

How to Make a Website with WordPress

Achieved
Apr 12, 2016
Achievement
HTML First

How to Make a Website

Achieved
Apr 10, 2016
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Apr 9, 2016
Achievement
WordPress Admin Settings

WordPress Admin Settings

Achieved
Apr 8, 2016
Achievement
WordPress User Roles

WordPress User Roles

Achieved
Apr 8, 2016
Achievement
WordPress Plugins

WordPress Basics

Achieved
Apr 8, 2016
Achievement
WordPress Themes

WordPress Basics

Achieved
Apr 8, 2016
Achievement
The WordPress Customizer

WordPress Basics

Achieved
Apr 8, 2016
Achievement
Managing Media in WordPress

WordPress Basics

Achieved
Apr 8, 2016
Achievement
Managing Content in WordPress

WordPress Basics

Achieved
Apr 8, 2016
Achievement
How to Install WordPress on Your Computer

How to Install WordPress on Your Computer

Achieved
Apr 7, 2016
Achievement
Getting Started with WordPress

Getting Started with WordPress

Achieved
Apr 7, 2016
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Apr 4, 2016
Achievement
Getting the REST You Need

REST API Basics

Achieved
Apr 3, 2016
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Mar 11, 2016
Achievement
Video Marketing

How to Market Your Business

Achieved
Mar 9, 2016
Achievement
Email Marketing

How to Market Your Business

Achieved
Mar 9, 2016
Achievement
Search Engine Optimization

How to Market Your Business

Achieved
Mar 9, 2016
Achievement
Usability Testing

How to Market Your Business

Achieved
Mar 9, 2016
Achievement
Usability Basics

How to Market Your Business

Achieved
Mar 9, 2016
Achievement
Social Media

How to Market Your Business

Achieved
Mar 9, 2016
Achievement
Next Steps

How to Start a Business

Achieved
Mar 9, 2016
Achievement
Financing Our Company

How to Start a Business

Achieved
Mar 9, 2016
Achievement
Selling Your Product

How to Start a Business

Achieved
Mar 9, 2016
Achievement
Marketing Your Product

How to Start a Business

Achieved
Mar 8, 2016
Achievement
Product Market Fit

How to Start a Business

Achieved
Mar 8, 2016
Achievement
Discovery

How to Start a Business

Achieved
Feb 24, 2016
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Feb 22, 2016
Achievement
Deploying to a Device

Build a Simple iPhone App with Swift

Achieved
Feb 12, 2016
Achievement
Debugging Our App

Build a Simple iPhone App with Swift

Achieved
Feb 12, 2016
Achievement
Improving Our User Interface

Build a Simple iPhone App with Swift

Achieved
Feb 12, 2016
Achievement
Using a Data Model

Build a Simple iPhone App with Swift

Achieved
Feb 11, 2016
Achievement
Views and View Controllers

Build a Simple iPhone App with Swift

Achieved
Feb 11, 2016
Achievement
Getting Started with Xcode

Build a Simple iPhone App with Swift

Achieved
Feb 10, 2016
Achievement
Swift Value vs Reference Types

Object-Oriented Swift

Achieved
Feb 10, 2016
Achievement
Swift Properties

Object-Oriented Swift

Achieved
Feb 10, 2016
Achievement
Swift Inheritance

Object-Oriented Swift

Achieved
Feb 10, 2016
Achievement
Swift Classes and Objects

Object-Oriented Swift

Achieved
Feb 10, 2016
Achievement
Swift Structs and their Methods

Swift Enums and Structs

Achieved
Feb 9, 2016
Achievement
Swift Structs

Swift Enums and Structs

Achieved
Feb 9, 2016
Achievement
Swift Enums and their Methods

Swift Enums and Structs

Achieved
Feb 9, 2016
Achievement
Swift Enums

Swift Enums and Structs

Achieved
Feb 8, 2016
Achievement
Swift Optionals

Swift Functions and Optionals

Achieved
Feb 4, 2016
Achievement
Swift Parameters and Tuples

Swift Functions and Optionals

Achieved
Feb 4, 2016
Achievement
Swift Functions

Swift Functions and Optionals

Achieved
Feb 4, 2016
Achievement
Control Flow

Swift Basics (retired)

Achieved
Feb 4, 2016
Achievement
Collections

Swift Basics (retired)

Achieved
Feb 3, 2016
Achievement
Operators

Swift Basics (retired)

Achieved
Feb 3, 2016
Achievement
Types

Swift Basics (retired)

Achieved
Feb 3, 2016
Achievement
Variables and Constants

Swift Basics (retired)

Achieved
Feb 3, 2016
Achievement
Newbie

Achieved
Jan 18, 2016