Let's get functional

on YouTube ↗29m

" summary

Argument that functional ideas (immutability, pure functions, no side effects) make Java 7 Android code smaller, more predictable and easier to test, demonstrated with concrete rewrites: a hand-rolled word-count becomes a groupBy + map to pairs one-liner, list folding replaces loops to fold to sum a basket, and filtering/mapping composes for sorting and thresholds. Recommends tools and languages to apply this now: RxJava, AutoValue, Retrolambda, Kotlin and incremental migration from imperative code.

AI-written summary · about

" chapters (8)

1. 0:00Start
2. 2:42What's the point?
3. 7:59Pure functions
4. 9:05You can use most common languages
5. 17:34What is your data?
6. 20:52Fold?
7. 24:14Start small
8. 27:23Good reads

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