What The Functional Programming

on YouTube ↗01h 00m

" summary

Overview of practical FP techniques with runnable Scala and Java code: immutability prevents thread races (demo shows a parallel increment failing), SimpleDateFormat not thread safe breaks when parsed in parallel, pure-function example (an addOne that unpredictably returns 3,4,null or throws), functor usage yields a result 14 for name-length sum via map/fold, flatMap avoids nested Option, monadic sequencing via for-comprehension, and recommendations include ZIO, Arrow and the MCP integration direction.

AI-written summary · about

" chapters (11)

1. 0:00Introduction to FP
2. 5:36Immutability
3. 11:26Expression-oriented programming
4. 15:49Pure functions and error handling
5. 27:45Function composition
6. 31:14Higher-order functions
7. 33:40Functors and data manipulation
8. 40:32Monads and sequencing
9. 46:32Illegal states and type safety
10. 51:00ADTs and pattern matching
11. 57:44Effects and closing remarks

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