Thirteen ways of looking at a Turtle

on YouTube ↗01h 06m

" summary

Thirteen different F# implementations of a turtle graphics API appear, each making a concrete tradeoff: 13 implementations delivered in ~4 minutes each, from mutable OO to immutable functions, partial application and dependency parameterization, then State monad, agents, event sourcing and an interpreter/free‑monad program. The demos build a canvas plus audit and distance processors, show async/result/state composition, and run: pipelines draw the turtle, events persist and replay, and capability responses disable illegal moves. Expect working examples and the exact FP patterns used rather than vague promises.

AI-written summary · about

" chapters (16)

1. 0:00Welcome
2. 1:56Object oriented Turtle implementation
3. 7:15Abstract data type Turtle approach
4. 9:21Functional Turtle
5. 12:28State monad
6. 17:56Error handling
7. 21:14Async Turtle
8. 23:43Batch processing
9. 27:56Actor model
10. 29:59Event sourcing
11. 33:09Stream processing
12. 40:56Dependency injection
13. 46:53Dependency rejection
14. 52:12Interpreter pattern
15. 59:20Capability model
16. 1:05:01Summary

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