Ralph Hellstern

Ralph Hellstern

Frankfurt am Main

5,390

Total Points

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63 Achievements

  • Timezones
  • Math Quiz App
  • Dates and Times
  • Buggy Logs
  • Creating a Memory Game
  • Technical Interview Prep: Basic Python
  • Emulating Built-ins
  • Welcome to OOP
  • Recursion and Space Complexity
  • Algorithms in Code
  • Writing a Classifier
  • Machine Learning Vocabulary
  • Introduction to Machine Learning
  • Cleaner Code
  • Introducing Data Analysis
  • Python Dictionaries
  • Iterating and Packing with Dictionaries
  • Introducing Dictionaries
  • Getting to Know Tuples
  • Packing and Unpacking
  • Getting Info In and Out of Functions
  • Introduction to Functions
  • Sequence Operations
  • Sequence Iterations
  • Getting Familiar with HTML and CSS
  • Becoming Acquainted with Your User
  • Becoming a Design Thinker
  • Introducing Spreadsheets
  • Time Complexity
  • Playing a Counting Game
  • Vulnerabilities: Authentication, Access, and Sensitive Data
  • Structuring Your Content
  • Getting Started With HTML
  • Number Game App
  • Shopping List App
  • Logic in Python
  • Python Data Types
  • Python For Beginners
  • Vulnerabilities:  Injection, XSS, CSRF
  • The OWASP Top 10 Explained
  • Maintaining Secure Web Apps
  • Protecting Data and Keeping Attackers Out
  • Why Protect Your Web Apps
  • Security: Solutions
  • Security in Practice
  • Common Attacks and Defenses
  • Hello Internet!
  • Python Slices
  • Python Lists
  • Build an Application
  • Using Lists
  • Welcome to the Treehouse Club
  • WWW
  • Computer Languages
  • Computer Basics
  • Meet Lists
  • All Together Now
  • Security: Concerns
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • The Internet
  • Newbie