Ramda
Ramda is a practical functional programming library for JavaScript that emphasizes immutability and side-effect-free functions. It provides a collection of utility functions designed to work with JavaScript data structures in a functional style, enabling developers to write cleaner, more declarative code. Unlike some other libraries, Ramda functions are automatically curried and data-last, making them ideal for functional composition.
Developers should learn Ramda when building applications that benefit from functional programming paradigms, such as data transformation pipelines, state management in React applications, or complex data processing tasks. It is particularly useful in scenarios requiring immutable data handling, like Redux reducers or when working with large datasets where predictability and testability are priorities. Ramda's composable functions help reduce boilerplate and improve code readability in functional JavaScript projects.