Writing a Database in Scala.js

on YouTube ↗44m

" summary

TinyDB is a browser database written in Scala.js that models tables, a small query language (parser + interpreter), custom column enumerations, joins, CSV import, and charts; live demo shows CSV import and a working count aggregation and pie charts but some query cases and reactive views remain unfinished. Implementation uses Tyrion for UI/state, FS2/cats-style streaming, and hand‑crafted facades for Chart.js instead of full scalably‑typed generation; code compiles to run on phones and the desktop.

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" chapters (17)

1. 0:00Intro
2. 0:30Scala Days
3. 1:14What is TinyDB?
4. 9:40TinyDB Tech Breakdown
5. 10:22Getting Started with Scala.js
6. 11:03Scala.js vs TypeScript
7. 13:34Scala.js Facade Layers
8. 15:45Facade Development
9. 18:37To ScalablyType or Not to ScalablyType
10. 22:15Better Idea: DIY
11. 23:55Linking Errors & the JDK
12. 27:42What Makes a Database?
13. 28:44Feature: Queries
14. 30:35Feature: Expressions
15. 36:29Main Tyrian Loop
16. 39:10Tyrian App Main
17. 40:41Future Feature Work

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