Function Composition
Function composition chains multiple functions: (f∘g)(x) = f(g(x)), expressing data-transformation flows as pipelines.
Purpose
Build complex transformations from simple functions, improving reuse and readability.
Mechanism
compose(f,g,h)(x) = f(g(h(x))). pipe(h,g,f)(x) = f(g(h(x))) (left to right). Lodash flow, Ramda pipe. Combined with currying to create reusable transformation pipelines.
Use cases
- Functional programming
- Data pipelines
- Transformation reuse