Breaking the entry barriers: making the scary keywords accessible.
summary
Defines concrete mechanics not mystique: shows category basics, then implements Functor = map + context with Option Try List as examples, demonstrates why maps fail on nested containers and how Monad = flatMap + flatten composes effects, explains purity and immutability for concurrency, and wraps side effects in IO + for-comprehension to preserve composability. Uses Scala examples and Big Data context (Spark/HDFS) and advocates stepwise practice rather than instant mastery.
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chapters (6)
- 0:00Start
- 4:00The Basics of Composition
- 6:39The Concept of Purity
- 9:39Functor... What the hell is that?
- 15:16What about Side Effects?
- 16:10Inch by inch, anything is a cinch.
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