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Developer Code Library

Learn to code and master 11 languages in one library: JavaScript, TypeScript, React, Node, Swift, Kotlin, Dart, C#, C++, HTML and CSS — plus a 27-chapter Intro to CS course in pure pseudocode, with runnable code, traps flagged, and capstone projects with full solutions.

English +19 more00$24.62

This is not a stack of cheatsheets — it is a complete, interactive computer-science education. A 27-chapter Intro to Computer Science course teaches each concept once in clean pseudocode, then every language template shows those same ideas in real, idiomatic syntax.

Built for complete beginners, CS students, and working developers adding a language to their stack — learn the concept once, carry the mental model into every language, and ship real, tested projects.

What’s inside

  • 27-chapter Intro to CS course: one foundation in universal pseudocode — variables, loops, recursion, objects, memory, algorithms, Big-O and data structures, up to trees, graphs and hash tables.
  • Web core: HTML, CSS, JavaScript, and TypeScript.
  • Front-end & full-stack frameworks: React & React Native, plus the Node.js, Next.js & Vue.js stack.
  • Mobile & cross-platform: Swift & SwiftUI, Kotlin + KMP, and Dart & Flutter.
  • Systems & applied: C++ and C#.
  • "Try every possibility" code: every chapter dense with runnable code covering the idiomatic way and the famous traps, marked # TRAP:.
  • Active recall: a Practice Challenge and a harder Bonus Challenge with hidden solutions on every topic, backed by a Challenge Answers chapter in every course.
  • Built-in study tools: a live Code Runner and Syntax Explorer on the page, plus a Pomodoro timer, session scoreboard, focus sounds and break games.
  • Project-based mastery: the CS course finishes with 5 capstone projects — and every language template adds its own capstones with full worked solutions.
🆕 What's new in v1.0
  • ✦ Initial public release.
  • ✦ Every language library populated and cross-linked.
  • ✦ Clean light & dark-friendly layout.
💬 User Reviews

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LanguagesEnglish +19 more
Downloads0
Rating0
Versionv1.0
CategoryDocumentation
Last UpdatedJun 2026
FormatNotion Template