This document discusses functional programming concepts in JavaScript including:
- Functional programming focuses on dividing problems into smaller subproblems and immutable data.
- Functional programming principles include transparency, purity, and immutability.
- Benefits include writing pure functions without side effects, avoiding state changes by using immutable data, declarative programming, reducing complexity, and composition.
- Common functional programming techniques in JavaScript include map, filter, reduce, some, every, and lazy evaluation.