Function Composition
Function composition is a fundamental programming concept where two or more functions are combined to create a new function. The output of one function becomes the input of the next, allowing for the creation of complex operations from simpler, reusable building blocks. It is a core principle in functional programming but is widely applicable across many programming paradigms.
Developers should learn function composition to write more declarative, readable, and maintainable code by chaining operations without intermediate variables. It is particularly useful in data processing pipelines, functional programming patterns, and when working with libraries like Lodash or Ramda. Mastering composition helps reduce side effects and promotes code reusability in scenarios like transforming data streams or building modular applications.