mediumFrontend

How do you manage global state in a large React application?

539 views
01

Understand the problem

Discuss common strategies and libraries for managing global state in more complex React applications.

state managementcontext apireduxglobal state
02

Attempt it yourself

Sketch your approach before reading the solution — that's what interviews test.

Stuck? AI Nudge Available

Get a conceptual hint to guide your logic without spoiling the final implementation.

03

Study the solution

The solution is waiting

Give it an honest attempt first — then compare your thinking with the full walkthrough.

04

Read the code

A tiny Context + useReducer store
import { createContext, useContext, useReducer } from "react";

const StoreContext = createContext(null);
function reducer(s, a) { return a.type === "add" ? { count: s.count + 1 } : s; }

function StoreProvider({ children }) {
  const value = useReducer(reducer, { count: 0 });
  return <StoreContext.Provider value={value}>{children}</StoreContext.Provider>;
}
function Counter() {
  const [state, dispatch] = useContext(StoreContext);
  return <button onClick={() => dispatch({ type: "add" })}>count: {state.count}</button>;
}

export default function App() {
  return (
    <StoreProvider>
      <div style={{ padding: 24, fontFamily: "system-ui" }}><Counter /></div>
    </StoreProvider>
  );
}
05

Join the discussion

Discussion (0)

Sign in to join the discussion.

No responses yet. Be the first to share what you think.
Previous
How do you interact with external APIs in React?
Next
Describe the benefits of using TypeScript with React.