React 18: implementing Nested State Management using useState and useEffect in Performance-Intensive Components
I tried several approaches but none seem to work. I'm following best practices but I'm working with an scenario with managing state in a performance-intensive React component. I'm using React 18, and my component has multiple nested states that depend on each other. The question arises when I try to update the state based on the result of an API call. Here's a simplified version of my code: ```javascript import React, { useState, useEffect } from 'react'; const MyComponent = () => { const [data, setData] = useState(null); const [nestedState, setNestedState] = useState({ count: 0, flag: false }); useEffect(() => { const fetchData = async () => { const response = await fetch('https://api.example.com/data'); const result = await response.json(); setData(result); }; fetchData(); }, []); useEffect(() => { if (data) { setNestedState(prevState => ({ ...prevState, count: prevState.count + 1 })); if (data.shouldUpdateFlag) { setNestedState(prevState => ({ ...prevState, flag: true })); } } }, [data]); return ( <div> <p>Count: {nestedState.count}</p> <p>Flag is {nestedState.flag ? 'ON' : 'OFF'}</p> </div> ); }; export default MyComponent; ``` The scenario is that the `setNestedState` calls seem to be racing with each other. When `data.shouldUpdateFlag` is true, the `count` updates, but then sometimes the flag doesn't reflect the change immediately, causing unexpected render behavior. I also noticed that occasionally, I see the following warning in the console: ``` Warning: want to update a component (`MyComponent`) while rendering a different component (`MyComponent`). ``` I've tried using both `useReducer` and local state, but I still have issues with the timing of these updates. Is there a better way to handle this nested state management in a way that maintains performance and avoids race conditions? Any suggestions would be appreciated! For context: I'm using Javascript on Windows 10. What's the best practice here?