Raffael Dettling

Raffael Dettling

Leonberg, BW, Germany

32,997

Total Points

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Skills & Experience

  • Spoken Languages

    • German
    • English
    • French
  • Looking for work

    Yes

387 Achievements

  • Cleaner Code
  • Creating a Memory Game
  • Emulating Built-ins
  • Welcome to OOP
  • Dice Roller
  • Python: Advanced Objects
  • Python: Inheritance
  • Python: Instant Objects
  • Getting to Know Tuples
  • Packing and Unpacking
  • Getting Info In and Out of Functions
  • Introduction to Functions
  • Sequence Operations
  • Sequence Iterations
  • Iterating and Packing with Dictionaries
  • Introducing Dictionaries
  • Build an Application
  • Using Lists
  • The Data Analysis Process
  • Getting to Know Your Data
  • Introducing Data Analysis
  • Business Plan for Freelance Business
  • Business Plan Basics
  • Writing a Classifier
  • Meet Lists
  • Playing a Counting Game
  • Machine Learning Vocabulary
  • Introduction to Machine Learning
  • All Together Now
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • Error Checking
  • Conditional Formatting
  • Pivot Tables
  • LOOKUP Functions
  • Build a Spreadsheet
  • Spreadsheet Best Practices
  • Spreadsheet Functions & Formulas
  • What Is WordPress?
  • Planning Your Users’ Journey
  • Strategy: Determining Goals for your Product
  • Understanding Our Users
  • Intro to User Experience (UX) Design
  • Applying IA
  • Evaluating IA
  • Main Principles
  • What is Information Architecture?
  • PHPDB Stage 1: Databases and PHP
  • PHP Loops
  • Vulnerabilities: Configuration, Components, and Logging
  • Vulnerabilities: Authentication, Access, and Sensitive Data
  • The Design Solution
  • The Design Problem
  • Design Principles
  • What is Product Design?
  • Vulnerabilities:  Injection, XSS, CSRF
  • The OWASP Top 10 Explained
  • Shopping List App
  • Logic in Python
  • Python Data Types
  • Python For Beginners
  • Practice forEach
  • Reusable GraphQL
  • Making Changes with Mutations
  • Create a Banner Ad
  • Fetching Data with Queries
  • Getting Started with GraphQL
  • Hello, Photoshop!
  • Digital Media Basics
  • Combining Array Methods
  • Array Manipulation
  • Array Iteration
  • Gotchas and Wins
  • Iteration
  • Creation
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • Working with JSON
  • Concurrency and Error Handling
  • Design Patterns
  • Page Layout
  • Meet Selenium
  • Networking
  • Exploring an API
  • Themes and Compatibility
  • Using Styles in Layouts
  • The Rest of the Story
  • Finishing the User Interface
  • The Model-View-Presenter Pattern
  • Intents and Multiple Activities
  • Tuning the User Interface
  • User Input in Android
  • Testing and Debugging
  • Improving Our Code
  • PHP Arrays
  • PHP Conditionals
  • Basic Android Programming
  • Creating the Screen Layout
  • Alexa Skills Kit Overview
  • Getting Started with Android
  • Security in Practice
  • Common Attacks and Defenses
  • Hello Internet!
  • Rehearsal and Delivery
  • Creating and Refining
  • Preparing to Present
  • Event Planning
  • Build a Pomodoro App
  • Design a Better App
  • Advanced Tooling
  • IDE Exploration
  • Integrating 3rd Party APIs
  • Implementing Redux
  • Implementing React Native
  • Why React Native
  • Practicing Data Visualization in Excel
  • Chart Formatting and Layout
  • When To Use What Type of Chart
  • Introduction To Data Visualization
  • Graphical User Interfaces
  • How it Works
  • Efficiency!
  • Exploring the Java Collections Framework
  • Local WordPress Development
  • Finishing the Game
  • Introducing JavaScript
  • Delivering the MVP
  • Creating the MVP
  • Harnessing the Power of Objects
  • Meet Objects
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Organizing Data
  • Getting There
  • Why Test
  • Combine and Minify Assets
  • Optimize Assets
  • Measuring Performance
  • Planning for Performance
  • Workflows
  • Working With Remote Repositories
  • Merging
  • Branches
  • Getting Started With Git
  • Why Version Control Matters
  • Installing Programs
  • Environment and Redirection
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • Chrome DevTools Basics
  • Web Apps
  • Websites
  • Introduction
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Captioning Video
  • Media Basics
  • Building Forms with Bootstrap
  • Using Bootstrap Components
  • Responsive Layouts with the Bootstrap Grid
  • Getting to Know Bootstrap 4
  • Creating a Simple Drawing Application
  • Creating a Password Confirmation Form
  • Creating a Mobile Drop Down Menu
  • Creating a Simple Lightbox
  • Getting Started With Spreadsheets
  • Introducing Spreadsheets
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • DOM Traversal
  • DOM Manipulation
  • Events
  • Hello, jQuery!
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • 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
  • JavaScript Loops
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • Introducing JavaScript
  • Finishing Our CRUD Web App
  • Adding Form Validation
  • Improving Our Form
  • Creating a Basic Form
  • Big Data at Netflix
  • Where and How Big Data Is Used
  • What is Big Data
  • Introducing CRUD Applications
  • Adding a List Page
  • Modeling and Presenting Data
  • Views
  • Controllers
  • Project Setup
  • Debugging, Best Practices, and Production
  • Refactoring with Sass
  • Installing Sass and Setting up the Project
  • Video Marketing
  • Email Marketing
  • Search Engine Optimization
  • Usability Testing
  • Usability Basics
  • Social Media
  • Next Steps
  • Financing Our Company
  • Selling Your Product
  • Marketing Your Product
  • Product Market Fit
  • Discovery
  • Going Further with HTML
  • Images, Text and Links
  • Structuring Your Content
  • Getting Started With HTML
  • Start menu and App Icon
  • Sound Design
  • Animating and Saving Sprites
  • Designing Characters and a Scene
  • Introduction to Game Design
  • Lists, Code, Links and Images
  • Understanding Markdown
  • S3 Storage Service
  • AWS and "The Cloud"
  • What To Test
  • Test Driven Development
  • Writing Unit Tests
  • Unit Testing
  • Query Builder
  • Query Operators
  • PHP on the Web
  • Daily Exercise Program
  • Unit Converter
  • Getting to Know PHP
  • Functional!
  • Now You're Querying!
  • Go Concurrency Overview
  • Go Custom Types Overview
  • Go Data Structures Overview
  • Sets and Dictionaries
  • Getting the REST You Need
  • Go Flow Control Overview
  • Go Syntax Overview
  • Subqueries
  • Set Operations
  • Joining Table Data with SQL
  • Table Relationships
  • Database Keys
  • Database Normalization
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • Finding the Data You Want
  • Getting Data from a Database
  • Data, Databases and SQL
  • Lists
  • Arrays
  • 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
  • Add Reusable Logic to Your Sass
  • Write Smart and Efficient CSS with Sass
  • Improve Your Workflow with Sass
  • Getting Started with Sass
  • Finalizing the Project
  • Case Studies and Examples
  • The Brand Identity Design Process
  • Introduction to Brand Identity
  • Save for the Web
  • Adding Images and a Mockup
  • Logo Design
  • Creating a Wireframe
  • Introducing Adobe Illustrator
  • The Logo Sprint
  • Logo Design 101
  • Workflow Basics
  • Slices & Save for Web
  • Vector Shapes
  • Type Tools
  • Masks Basics
  • MASH JavaScript
  • MASH CSS
  • MASH HTML
  • Treehouse Club - JavaScript
  • Treehouse Club - CSS
  • Welcome to the Treehouse Club
  • WWW
  • Layer Basics
  • Workspace Basics
  • Keyframe and Line Drawing Animations
  • Transitions and Transforms
  • Creating an SVG
  • Introduction to SVG
  • Data Retreiver
  • The Internet
  • Computer Languages
  • Computer Basics
  • Serialized!
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Data Parser
  • Adding 3D Effects with CSS
  • Getting Started with CSS Transforms
  • Transition Timing Functions and Delays
  • Security: Solutions
  • Security: Concerns
  • Getting Started with CSS Transitions
  • Design Foundations Final
  • Becoming a Problem Solver
  • Understanding Aesthetics
  • Introduction to Design
  • 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
  • Structuring Tables
  • Table Basics
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Data Reader
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Abstraction
  • System.Object
  • Polymorphism
  • Loops and Final Touches
  • Encapsulation with Properties
  • Encapsulation and Arrays
  • Inheritance
  • Methods
  • Object-Oriented Programming
  • Perfect
  • Perform
  • Console I/O
  • Prepare and Plan
  • Newbie