Henry Bown

Henry Bown

Member Since October 9, 2019

Skills & Experience

  • Spoken Languages

    • English
    • German

305 Achievements

  • Build a Spreadsheet
  • Exterminator
  • Spreadsheet Best Practices
  • Spreadsheet Functions & Formulas
  • Getting Started With Spreadsheets
  • Introducing Spreadsheets
  • Go Concurrency Overview
  • Go Custom Types Overview
  • Go Data Structures Overview
  • Go Flow Control Overview
  • Go Syntax Overview
  • Branches on Git Hosting Services
  • Remote Branches
  • Sinatra Layouts
  • HTML Forms
  • Practice ERB Templates
  • Defining Routes
  • The Role of Selectors in JavaScript
  • Pseudo-classes and Combinators
  • Selector Basics
  • Image Delivery with Srcset and Sizes
  • Art Direction with the Picture Element
  • Regular Expressions
  • Analysis
  • Interviewing
  • Recruiting Participants
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Merging
  • Branches
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Finding the Data You Want
  • Getting Data from a Database
  • Data, Databases and SQL
  • Sinatra Finishing Touches
  • Updating Data in Sinatra
  • Adding New Data in Sinatra
  • Sinatra ERB Templates
  • Creating New Sinatra Apps
  • Gems In Depth
  • Ruby Gems
  • Ruby Standard Library: Part 2
  • Ruby Standard Library: Part 1
  • Ruby Core
  • Store Inventory Using Modules
  • Include and Extend
  • Ruby Core Modules
  • Ruby Module Basics
  • Input and Output
  • Search
  • Ruby Class Design
  • Blocks Practice
  • Working With Blocks
  • Ruby Blocks
  • Build a Bank Account Class
  • Ruby Variables and Methods
  • Ruby Objects and Classes
  • Exploring Arrays
  • Recursion and Space Complexity
  • Algorithms in Code
  • Time Complexity
  • Playing a Counting Game
  • Build a Simple Contact List
  • Ruby Iteration
  • Ruby Loops
  • Build a Grocery List Program
  • Ruby Hashes
  • JavaScript Objects and Conditionals
  • JavaScript Arrays and Loops
  • JavaScript Functions
  • Data Types and Variables
  • Ruby Arrays
  • Ruby Conditionals
  • Ruby Numeric Types
  • Ruby Objects
  • Ruby Strings and Escape Sequences
  • Ruby Syntax
  • Event Planning
  • Build a Pomodoro App
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • Vulnerabilities: Configuration, Components, and Logging
  • Vulnerabilities: Authentication, Access, and Sensitive Data
  • Vulnerabilities:  Injection, XSS, CSRF
  • The OWASP Top 10 Explained
  • Maintaining Secure Web Apps
  • Protecting Data and Keeping Attackers Out
  • Why Protect Your Web Apps
  • Design a Better App
  • Graphical User Interfaces
  • Writing Your Own Java Annotation
  • Using Java's Built-In Annotations
  • Review Functional Programming Fundamentals
  • Reduction and Aggregation
  • Meet Streams
  • Java's Functional Toolset
  • What to Test
  • How To Test
  • Why Test
  • Advanced Tooling
  • IDE Exploration
  • Improving Quality Assurance Practices
  • Bug Reporting
  • Executing Tests
  • Writing Manual Test Cases
  • Why We Test
  • Getting Modular with Mixins and Functions
  • How it Works
  • Java Maps
  • Java Lists
  • Generics in Java
  • Interfaces in Java
  • Java Inheritance
  • Introducing IntelliJ and Unpacking Packages
  • Gotchas and Wins
  • Iteration
  • Creation
  • Delivering the MVP
  • Creating the MVP
  • Harnessing the Power of Objects
  • Meet Objects
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Common Commands
  • Directories and Files
  • The Command Shell
  • Adding the Game Logic
  • Making the Game Interactive
  • First Steps in React
  • Rendering the Game
  •  Building Constructor Methods and Generating Objects
  • Introducing 'Four in a Row'
  • Improving your Gulp Workflow
  • Compile Sass with Gulp
  • Gulp your JavaScript workflow!
  • Welcome to Gulp.js
  • Asynchronous Code in Express
  • Updating and Uninstalling Packages with npm
  • Installing Packages with npm
  • JavaScript Tools and Workflows
  • JavaScript is Everywhere
  • What is npm?
  • Chrome DevTools Basics
  • Testing for Accessibility
  • Mobile Accessibility
  • Accessible UI Patterns
  • Semantic HTML and WAI-ARIA
  • WCAG 2.0 (and Other Standards)
  • Access for Everybody
  • Exploring Async/Await
  • Combine and Minify Assets
  • Optimize Assets
  • Measuring Performance
  • Planning for Performance
  • Understanding Promises
  • Asynchronous JavaScript with Callbacks
  • What is Asynchronous Programming?
  • Callbacks and the DOM
  • Callbacks with Timers
  • Introduction to Callback Functions
  • Getters and Setters
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Programming AJAX
  • AJAX Concepts
  • Get Involved in Open Source
  •  Create a Web Presence on GitHub
  •  Working on a Team
  • Working By Yourself
  • Hello, GitHub!
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • Working with jQuery Collections (2017)
  • Understanding jQuery Events and DOM Traversal (2017)
  • Introducing jQuery (2017)
  • Traversing the DOM
  • Responding to User Interaction
  • Welcome to the Treehouse Club
  • Making Changes to the DOM
  • Getting a Handle on the DOM
  • The Browser Environment
  • Media Basics
  • Captioning Video
  • Design Patterns
  • Page Layout
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • JavaScript Objects
  • JavaScript Arrays
  • JavaScript Loops
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • Introducing JavaScript
  • Finishing the Game
  • Introducing JavaScript
  • Prototyping with a Design System
  • Material Design Basics
  • Understanding Design Systems
  • Interactivity in Adobe XD
  • Prototyping Designs in Adobe XD
  • Introducing Adobe XD
  • How to Make Wireframes in Adobe XD
  • How to Make Wireframes in Sketch
  • How to Make Wireframes in Balsamiq
  • How to Make Wireframes on Paper
  • What is Wireframing?
  • Hierarchy and Layout
  • Writing Copy
  • Principles of Design
  • Elements of Design
  • Finalizing the Project
  • Case Studies and Examples
  • The Brand Identity Design Process
  • Introduction to Brand Identity
  • Improving Usability
  • Mobile Usability
  • Website Usability
  • What is Usability?
  • Design Foundations Final
  • Becoming a Problem Solver
  • Understanding Aesthetics
  • Introduction to Design
  • Going Further with Grid Layout
  • Flexible Sized Grids
  • Introducing Grid Layout
  • Add Reusable Logic to Your Sass
  • Write Smart and Efficient CSS with Sass
  • Improve Your Workflow with Sass
  • Getting Started with Sass
  • Keyframe and Line Drawing Animations
  • Transitions and Transforms
  • Creating an SVG
  • Introduction to SVG
  • Adding 3D Effects with CSS
  • Getting Started with CSS Transforms
  • Transition Timing Functions and Delays
  • Getting Started with CSS Transitions
  • Building Forms With Bootstrap
  • Using Bootstrap Components
  • Responsive Layouts With the Bootstrap Grid
  • Getting to Know Bootstrap 4
  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • Final Project: Create a Typographic Site
  • Laying Out Type for the Web
  • Basic Web Typography
  • How to Choose and Use Webfonts
  • Introduction to Typography
  • Structuring Tables
  • Table Basics
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Exploration
  • Discovery
  • Going Further with HTML
  • Images, Text and Links
  • Structuring Your Content
  • Getting Started With HTML
  • Security: Solutions
  • Adding a New Web Page
  • Make It Beautiful with CSS
  • HTML: The Structural Foundation of Web Pages and Applications
  • Getting Familiar with HTML and CSS
  • GitHub and Other Remote Repositories
  • Managing Committed Files
  • First Commits
  • Security: Concerns
  • Computer Languages
  • Security in Practice
  • Common Attacks and Defenses
  • Hello Internet!
  • Computer Basics
  • WWW
  • The Internet
  • Newbie