1 | initial version |
The best way to store multiple components' state for children in React within a single context is to use the useState hook and the useContext hook.
First, create a new context using createContext:
const MyContext = React.createContext();
Then, create a state object to store the state of all the components:
const [state, setState] = useState({})
Next, create a custom provider component that updates the state and passes it down to its children using the context provider:
function MyProvider(props) {
const [state, setState] = useState({})
const updateState = (key, value) => {
setState(prevState => ({ ...prevState, [key]: value }))
}
return (
<MyContext.Provider value={{ state, updateState }}>
{props.children}
</MyContext.Provider>
)
}
Finally, use the useContext hook in the child components to access the state and the updateState function:
function MyChildComponent() {
const { state, updateState } = useContext(MyContext)
const handleClick = () => {
updateState('key', 'value')
}
return (
<div>
{state.key}
<button onClick={handleClick}>Update</button>
</div>
)
}
This way, all the child components can access and update the shared state stored in the context.