Kyle wraps up the course with a review of the concepts he covered and some of his own thoughts on functional programming in general.
(flute playing and bass thumping)…- We started with basically not a lot of assumption…about functional programming and we observed side effects.…Side effects are when a function does something…in addition to its direct effect…and in addition to its direct return value…it has some other effect.…And that can be as simple as printing…something to a console.…Or as complicated as changing some state,…changing some variable in the other parts of our program.…That's complicated, not only because it means…that if that function relies on that variable…we have to know how many times the function's…been called to be able to predict its outcome.…
But it's also complicated…because if there's a variable hanging out in free space…that our function's relying upon,…somebody else can change that variable…and change out from underneath us.…Like pulling the rug out from underneath you.…Changing what you expect.…So that's one of the fundamental motivations…for functional programming…is to eliminate all that complexity…by doing what we call what?…
This course was created by Frontend Masters. It was originally released on 03/08/2016. We're pleased to host this training in our library.
- Pure functions
- Manual composition
- Composition utility
- List operations
Skill Level Intermediate
1. Pure Functions
2. Composition and Immutability
3. Closure and Recursion
4. List Operations
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