Platformer Physics: Jumps, Gravity & Time
Reason about movement units, jump arcs, fixed updates and forgiving controls.
Find your next step
What do you want
to learn or make?
Explore the resource library
293 resources. Add a search term or choose a type to narrow the list.
Game Collisions: Hitboxes, Contact & Resolution
Distinguish overlap detection from collision response and test important boundary cases.
Game State: Pause, Restart & Reliable Progress
Keep game state consistent through collection, checkpoints, restarts and saved projects.
Level Design: Teaching, Routes & Fair Challenge
Choose useful layouts, readable routes and fair recovery points for beginner-friendly games.
Game Playtesting: Evidence, Metrics & Debugging
Ask useful test questions, interpret run data and diagnose problems without overclaiming.
Canvas Games: Drawing State & Transformations
Understand drawing order, transforms, paths and the difference between pixels and game state.
Game Input: Keyboard, Pointer & Focus
Handle held keys, pointer cancellation and scaled canvas coordinates reliably.
Procedural Levels: Randomness, Seeds & Constraints
Evaluate random generation, reproducibility, valid layouts and bounded retry strategies.
Accessible Games: Feedback, Controls & Difficulty
Choose practical ways to make game controls, information and challenge more usable.
JavaScript Closures & Scope
Reason through lexical scope, closures, shadowing, and function factories.
JavaScript Maps, Sets & Iteration
Practice keyed collections, identity, iterables, and generator behavior.
JavaScript Strings & Regular Expressions
Work through string boundaries, Unicode, replacements, and pattern matching.
JavaScript Numbers, Dates & Formatting
Test numeric conversion, precision, timestamps, and locale-aware output.
JavaScript Fetch & Browser Data
Practice request handling, cancellation, JSON, URLs, and browser storage.
Apps Script Web Apps & HTML Interfaces
Connect HTML interfaces to server functions and reason about deployment access.
Apps Script API Requests & JSON
Build dependable external API requests with explicit payloads and response handling.
Apps Script Drive & Docs Workflows
Practice file identity, template copies, document tabs, and safe content changes.
Apps Script Forms & Calendar Automation
Map form responses to reliable scheduling and notification workflows.
Apps Script State & Reliable Automation
Handle persistent settings, caches, locks, checkpoints, and partial failures.
Semantic HTML, Forms & Document Structure
Test landmark structure, forms, tables, metadata, responsive images, and the semantics that make HTML resilient.
Web Accessibility & Inclusive Interfaces
Challenge your knowledge of WCAG principles, keyboard interaction, ARIA, focus, contrast, announcements, and accessible components.
HTTP, REST APIs & Web Communication
Reason through methods, status codes, caching, headers, authentication, idempotency, CORS, and API design.
Web Security Fundamentals for Developers
Test XSS, CSRF, authentication, authorization, cookies, password storage, headers, validation, and secure design decisions.
Git Branching, History & Collaboration
Challenge your Git knowledge with commits, branches, merges, rebases, recovery, remotes, conflicts, and collaborative workflows.