JavaScript to Purescript A Migration Story

on YouTube ↗01h 04m

" summary

Migrating a large Angular + Redux-Saga app to PureScript and Halogen is described with concrete outcomes: PureScript 0.11.7 plus Halogen are used to embed self‑contained components into an existing Angular shell, with bi‑directional messaging, explicit data validation via Validation and simple‑json parsing, and an aVar for XSRF handling. Surprising cost: about 33,000 lines of tests compared to ~25k app lines. Result: validation and testing get simpler and integration works, but learning curve and spotty docs slow adoption.

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" chapters (38)

1. 0:00Introduction
2. 1:10Agenda
3. 1:54Challenges
4. 9:35TLD
5. 10:18Criteria
6. 12:15Security
7. 13:50Data Types
8. 17:59Data Validation
9. 18:46Recap
10. 19:03Validation
11. 20:29Combining Validations
12. 21:22TypeR Operators
13. 21:47Validating
14. 22:37Simple JSON
15. 23:58Purescript Generic
16. 26:09Any Questions
17. 26:57Ajax
18. 28:20User Requests
19. 30:45Asynchronous Effects
20. 31:41Questions
21. 32:22Halogen
22. 35:31Update Function
23. 38:08Raise Message
24. 38:31Child Components
25. 39:51Type Components
26. 41:22Initialize Components
27. 42:31Embedding Halogen
28. 43:33Integration
29. 46:01FFI
30. 48:53Question
31. 49:49Tooling
32. 50:44Type holes
33. 51:09Other things
34. 52:09Documentation
35. 53:25Scope of Work
36. 54:40Studio
37. 57:04Integration Progress
38. 57:32Flow

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