Stefan Hoffmann

Stefan Hoffmann

Techdegree Student

Member Since February 11, 2015

Skills & Experience

  • Job Title

    Software Developer

  • Spoken Languages

    • German
    • English

191 Achievements

  • Combining Array Methods
  • Array Manipulation
  • Array Iteration
  • Callbacks and the DOM
  • Callbacks with Timers
  • Introduction to Callback Functions
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • Structuring Tables
  • Table Basics
  • Advanced Selectors
  • Create Function Using Arrow Syntax
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Using Template Literals
  • Defining Variables With let and const
  • Selectors - Beyond the Basics
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • DOM Traversal
  • DOM Manipulation
  • Events
  • Hello, jQuery!
  • Traversing the DOM
  • Responding to User Interaction
  • Making Changes to the DOM
  • Getting a Handle on the DOM
  • The Browser Environment
  • JavaScript Objects
  • JavaScript Arrays
  • Finishing the Game
  • Introducing JavaScript
  • Serialized!
  • 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
  • Data Parser
  • Data Reader
  • Abstraction
  • System.Object
  • Going Further with Grid Layout
  • Flexible Sized Grids
  • Introducing Grid Layout
  • Polymorphism
  • Project Setup
  • Loops and Final Touches
  • Encapsulation with Properties
  • Encapsulation and Arrays
  • Inheritance
  • Methods
  • Object-Oriented Programming
  • Perfect
  • Perform
  • Console I/O
  • Prepare and Plan
  • JavaScript Loops
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • JavaScript Functions
  • JavaScript Conditional Statements
  • Build and Share a Unity Game
  • Game Audio
  • Score, Enemies, and Game State
  • Pickups
  • Player Input and Cameras
  • The Unity Editor and Scene Setup
  • JavaScript Numbers
  • JavaScript Variables
  • Introducing JavaScript
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • Introduction to Video Games
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Interactive Visualizations
  • Styling and Scaling Data
  • Working with Media Queries
  • CSS Animation Basics
  • Understanding CSS Transitions and Transforms
  • Understanding Flexbox and Multi-Column Layout
  • Transitions and Transforms
  • Installing Programs
  • Environment and Redirection
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • Securing and Maintaining a MySQL Database
  • SQL Calculating, Aggregating and Other Functions
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • Improving your Gulp Workflow
  • Compile Sass with Gulp
  • Gulp your JavaScript workflow!
  • Welcome to Gulp.js
  • Workflows
  • Working With Remote Repositories
  • Merging
  • Branches
  • Getting Started With Git
  • Why Version Control Matters
  • Joining Relational Data Between Tables in SQL
  • Manipulating Schema with SQL
  • Creating Tables and Manipulating Data with SQL
  • Reading Data from Databases with SQL
  • Installing MySQL Server and MySQL Workbench
  • Introduction to Data, Databases and SQL
  • Contact Forms & Mailers
  • Slim and Templates
  • Dependency Management
  • Paginating a List: Controller
  • Adding Search: Model
  • Adding Search: Controller & View
  • Hosting with GitHub Pages
  • Building and Customizing the Blog
  • Getting Started with Jekyll
  • Refactoring the Codebase
  • Cleaning URLs with Rewrite Rules
  • Cleaning URLs with Subfolders
  • Integrating Validation Errors
  • Simple PHP Application: Wrapping Up The Project
  • Working with PHP Functions
  • Integrating With Paypal
  • Simple Mobile Interface
  • Exporting Designs
  • Art Direction with the Picture Element
  • Image Delivery with Srcset and Sizes
  • The Staging Server
  • The Local Development Environment
  • Listing Inventory Items
  • Data Binding with D3
  • Adding a Contact Form
  • Creating the Menu and Footer
  • Getting Started with PHP
  • Tables
  • Forms
  • Objects
  • Links
  • Lists
  • Text
  • Introduction
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Exterminator
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Selections with D3
  • Creating an SVG
  • Introduction to SVG
  • Beginning HTML and CSS
  • PHP Internal Functions
  • PHP Returns & Closures
  • PHP Functions Basics
  • Sketch Features
  • Introducing Sketch
  • Database Security
  • Queries & Results
  • Getting Started with PDO
  • PHP Loops
  • PHP Conditionals
  • PHP Datatypes
  • PHP Data & Structure
  • PHP Getting Started
  • How To Test Our Code
  • PHP Inheritance & Interfaces
  • PHP Properties & Methods
  • PHP Objects and Classes
  • Newbie