Problem Statement
What is createEntityAdapter in RTK and how does it help with normalized state?
Explanation
createEntityAdapter is an RTK utility that generates a set of prebuilt reducers and selectors for performing CRUD operations on normalized state, managing entities with IDs and maintaining them in a normalized structure automatically. It provides methods like addOne, addMany, setAll, updateOne, removeOne for manipulating entities, along with generated selectors like selectAll, selectById, selectIds, and selectEntities for accessing data efficiently. The adapter handles common patterns like sorting entities with sortComparer, prevents duplication, makes updates type-safe with TypeScript, and eliminates boilerplate for managing normalized collections, making state management much simpler for entity-based data.
