advanced patterns with useEffect and asynchronous state updates in React 18
I'm wondering if anyone has experience with I'm working with an scenario with the `useEffect` hook in my React application using version 18..... I have a component that fetches data from an API, and I'm using an asynchronous function within the `useEffect` to set the state based on that data. However, the state does not seem to update as expected after the API call completes. Instead, it returns the previous state value when I try to use it in another function. Hereβs a simplified version of my code: ```javascript import React, { useEffect, useState } from 'react'; const MyComponent = () => { const [data, setData] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchData = async () => { const response = await fetch('https://api.example.com/data'); const result = await response.json(); setData(result); setLoading(false); }; fetchData(); }, []); const handleClick = () => { console.log(data); // This logs 'null' when loading is still true }; return ( <div> {loading ? <p>Loading...</p> : <p>Data: {JSON.stringify(data)}</p>} <button onClick={handleClick}>Show Data</button> </div> ); }; export default MyComponent; ``` When I click the button before the data has been fetched, the console logs `null`, even after the async operation completes. I was expecting it to log the fetched data instead. I've tried using an additional state variable to trigger a re-render, but it's still not working as intended. What am I missing? How can I ensure that the latest state is available after the API call completes? This is part of a larger CLI tool I'm building. Any ideas what could be causing this? I'm working in a macOS environment.