📦 immer

Immer is a tiny package that lets you work with immutable state in a more convenient way. Forget manually creating copies of intricate data structures. Immer uses structural sharing to efficiently update immutable data, significantly reducing boilerplate code. Focus on directly mutating a draft state, and Immer will automatically produce the new, immutable state for you, making immutable updates easier and more maintainable in Redux, React, and other state management libraries.