useContext
import React, { createContext } from 'react';
import Child from './Child';
export const UserContext = createContext();
const user = { name: 'A', age: 20 };
function App() {
return (
<div className="App">
<UserContext.Provider value={user}>
<Child />
</UserContext.Provider>
</div>
);
}
export default App;
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