Algorithms and Data Structures in TypeScript
Free Book (~400 Pages)
Details
- External ID
- 47363400
- Source
- HN
- Company
- —
- Product
- Algorithms and Data Structures in TypeScript
- Website domain
- github.io
- Launched
- March 13, 2026
- Cohort
- —
- Upvotes
- 65
- Upvotes percentile
- 0.8640836408364083
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
I started writing this book 10 years ago in JavaScript, got through a few chapters (asymptotic notation, basic techniques, start of sorting), and then abandoned it.Recently I picked it back up, converted everything to TypeScript, and used AI (Zenflow [1] + Claude Opus 4.6) to complete the remaining chapters. I provided the structure, direction, and initial chapters; the AI generated the bulk of the remaining content under a spec-driven workflow.The book covers roughly a first 1-2 year CS curriculum: sorting, dynamic programming, graph algorithms, trees, heaps, hash tables, and more. All code is executable, typed with generics/interfaces, and covered with tests.I've thoroughly reviewed several chapters (sorting, DP, graphs) and done a high-level pass on the rest. Currently in beta — corrections and contributions are welcome.MIT licensed. Inspired by Wirth's "Algorithms and Data Structures", SICP, and CLRS.Code and tests: https://github.com/amoilanen/Algorithms-with-Typescript[1] https://zencoder.ai/zenflow
Enrichment
- Theme
- browser automation and scraping for AI
- Vertical
- Education
- Function
- Content generation
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- algorithms and data structures reference
- Manually corrected
- False
Could you build this?
Yes This is a static documentation book (built with mdBook or similar) containing educational TypeScript implementations and unit tests of standard algorithms.
Discussion
20 comments analyzed.
Concerns raised: Appears to be coordinated AI campaign with new accounts and artificial upvotes, Author hasn't read their own book before requesting feedback, Post is vehicle to promote Zenflow tool by employer Zencoder, Book is AI-generated slop, not original work, Lack of transparency about AI tool usage and promotional intent
Competitors
Other products that read as similar to this one — 133 launches clear the similarity bar, closest 8 shown.
Attention rank: #19 of 134 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 110 days after the earliest competitor.
- I wrote a book · hn · 2025-12-08 · 53 upvotes · similarity 0.50
- book-data-structures-ai · github · 2026-09-13 · 15 upvotes · similarity 0.48
- Functional Programming Strategies, the book I'm working on · hn · 2026-07-01 · 5 upvotes · similarity 0.47
- Algorithms 1.0.0 · hn · 2026-02-18 · 7 upvotes · similarity 0.46
- SharpTS · hn · 2026-01-09 · 6 upvotes · similarity 0.44
- Typical is TypeScript with type-safety at runtime · hn · 2026-01-11 · 8 upvotes · similarity 0.44
- CodeDrift · hn · 2026-03-05 · 5 upvotes · similarity 0.43
- mcp-tada · github · 2026-09-10 · 23 upvotes · similarity 0.42
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a content generation tool for Government yet.