An introduction to functional programming

on YouTube ↗12m

" summary

Claims that pure functions plus map/filter/reduce replace manual loops and reduce bugs, demonstrates immutability with Object.freeze and disciplined copy-on-write, builds a HOF counter that composes operations using rest/spread and shows currying with a subtract example, and composes two simple adders to prove composition works. Emphasizes avoiding shared state and side effects as the payoff and shows concrete JavaScript snippets rather than theory.

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" chapters (5)

1. 0:00Start
2. 2:03What is Functional Programming?
3. 2:27Characteristics
4. 2:57Programming paradigm code style (mindset)
5. 9:41Currying & Composition

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