![]() ![]() #Reduxjs toolkit thunk code#There's good reasons why these patterns exist, but writing that code "by hand" can be difficult. Normalized state makes it easier to look up items by IDsĪs you've seen, many aspects of Redux involve writing some code that can be verbose, such as immutable updates, action types and action creators, and normalizing state.Request status should be tracked with loading state enum values.Memoized selectors optimize calculating transformed data.Action creators encapsulate preparing action objects and thunks.Redux "thunk" functions are the standard way to write basic async logic.Middleware add an extra step to the Redux data flow, enabling async logic.Redux middleware allow writing logic that has side effects.wraps your app and lets components access the store.useDispatch lets components dispatch actions.useSelector reads values from Redux state and subscribes to updates.React-Redux provides APIs to let React components talk to Redux stores.Redux is separate from any UI, but frequently used with React.The Redux DevTools extension lets you see how your state changes over time.Stores can be customized using "enhancers" and "middleware".The createStore API creates a Redux store with a root reducer function.Reducers must follow rules like "immutable updates" and "no side effects".Reducers take current state and an action, and calculate a new state.Actions are objects that describe "what happened" events in an app.How Redux uses a "one-way data flow" pattern. ![]() what Redux is, when/why to use it, and the basic pieces of a Redux app. ![]()
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