Leaving side effects aside

on YouTube ↗01h 01m

" summary

Compares functional and object-oriented techniques for isolating side effects to maximize purity, using Scala and the scalaz library as concrete tools. Explains how functional abstractions and monads extend purity beyond OO approaches so effects (database, web, logging, async, persistence) can be isolated, enabling easier testing, composition, and changes in effect execution.

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" chapters (15)

1. 0:00Intro
2. 1:48OUTLINE
3. 4:28An impure function
4. 8:08Pure or impure?
5. 10:59Why are side effects the software- Incarnation of evil?
6. 16:25Separation of concerns: presentation vs. business logie
7. 19:19Intermingled concerns
8. 21:34Separation of concerns: business logic vs. persistence
9. 22:57"Purified" business logic
10. 25:04Persistency concerns relegated to interface implementations
11. 25:51Overall architecture
12. 28:57How can we extend the realm of purity?
13. 40:57Enhanced programs, enhanced Interpreters
14. 49:30Functional architecture
15. 56:39Conclusion

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