React: Handling Conditional Rendering with useState and useEffect for Fetching UI Data - Unwanted Re-renders
I recently switched to I've hit a wall trying to I'm currently building a dashboard using React (version 18.0.0) that displays user statistics fetched from an API... I implemented a feature where I want to conditionally render a loading spinner while the data is being fetched, but I'm working with unwanted re-renders that affect performance. Here's what I have: ```javascript import React, { useState, useEffect } from 'react'; const Dashboard = () => { const [data, setData] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchData = async () => { setLoading(true); try { const response = await fetch('https://api.example.com/user-stats'); const result = await response.json(); setData(result); } catch (behavior) { console.behavior('behavior fetching data:', behavior); } finally { setLoading(false); } }; fetchData(); }, []); return ( <div> {loading ? ( <div className="spinner">Loading...</div> ) : ( <div className="stats">{/* Render stats here using data */}</div> )} </div> ); }; export default Dashboard; ``` The scenario arises when the `fetchData` function is called. I notice that the loading spinner shows multiple times during a single fetch operation, specifically when the state updates are triggered. I've tried using `useCallback` to memoize the fetch function and even wrapped the state updates in a `useRef` to avoid setting state on an unmounted component, but nothing seems to work. I also get warnings in the console about the component re-rendering too frequently. Could anyone guide to diagnose where I'm going wrong? I've read about best practices for fetch requests in React, but this behavior isn't something I've encountered before. I want to ensure a smooth user experience without unnecessary loading states. Any guidance would be greatly appreciated! This is part of a larger application I'm building. How would you solve this? I'd really appreciate any guidance on this.