React component implementation guide state after async call in useEffect with dependency array
I'm working with an scenario where my React component isn't updating the state as expected after an asynchronous call within a `useEffect` hook. The component fetches data from an API and sets the state based on the response. However, when the component re-renders due to a change in the dependency array, I'm still seeing the old state. Here’s a simplified version of my code: ```javascript import React, { useEffect, useState } from 'react'; const MyComponent = () => { const [data, setData] = useState(null); const [dependency, setDependency] = useState(0); useEffect(() => { const fetchData = async () => { const response = await fetch(`https://api.example.com/data/${dependency}`); const result = await response.json(); setData(result); }; fetchData(); }, [dependency]); return ( <div> <p>Data: {JSON.stringify(data)}</p> <button onClick={() => setDependency(dependency + 1)}>Fetch New Data</button> </div> ); }; export default MyComponent; ``` I expected that when I click the button to increment `dependency`, it should trigger a new fetch call and update the `data` state accordingly. However, the console logs show that the previous state is retained until the next re-render. I'm not seeing any behavior messages, but I feel like I'm missing something fundamental about how the state updates work in conjunction with async operations. I've tried removing the dependency array entirely, but that caused an infinite loop. Any insights on why the state isn't updating as expected would be greatly appreciated!