5 exercises found
Functional programming means thinking in small, composable functions — keeping logic reusable and avoiding repetition.
A higher order function either accepts a function as an argument or returns one — this abstraction is the foundation of elegant, reusable code.
A higher-order function is any function that takes another function as an argument or returns a function. You have already used them without knowing it.
The real power shows up when you chain filter and map together. Filter first to narrow down, then map to transform. Clean, readable, no loops.
The ultimate power move: chain map, filter, and reduce in a single expression. Each step does one small job. Together, they handle complex data transformations.