A Primer on Functional Programming
summary
Defines pure functions as always same output and no side effects and notes you cannot be 100% pure in real systems; demonstrates lambdas, immutability, and type inference; walks through map filter reduce with actual examples and a room exercise that counted ~70 people to show a naive loop versus a concurrent reduce; argues for a functional core with effectful edges using database writes at the boundaries and points out the surprising fact that spreadsheets behave functionally.
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chapters (4)
- 0:00Start
- 6:38Functional Programming Concepts
- 16:37Why Use Functional Programming?
- 19:42Activity 2 In a moment, everyone will stand up.
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