📦 Arrays, Sets, Trees, and Beyond—Built Your Way.
Learn data structures as a builder, not just a student. This step-by-step guide teaches how JavaScript structures like arrays, sets, maps, and custom trees actually work—by making you build them yourself.
⚙️ You’ll Discover: ✅ The why behind JavaScript’s built-ins ✅ How to build stacks, queues, trees, heaps, and graphs ✅ Key performance trade-offs and real-life use cases ✅ Hands-on examples you can run and modify
If you’ve ever used a data structure without really knowing it—this guide fixes that fast.