👀 Views: 1 💬 Answers: 1 📅 Created: 2025-06-11

react react-hooks suspense JavaScript

I've been banging my head against this for hours... I'm sure I'm missing something obvious here, but After trying multiple solutions online, I still can't figure this out. I'm currently working on a React 18 application that utilizes the new `Suspense` and `useTransition` features to improve the user experience during data fetching. However, I've encountered an scenario where the UI flickers when rendering components conditionally based on the state of a resource that is being loaded.\n\nHere's a simplified version of my code: ```javascript import React, { useState, useTransition, Suspense } from 'react'; const fetchData = () => new Promise(resolve => setTimeout(() => resolve('Data loaded'), 1000)); const DataComponent = React.lazy(() => fetchData()); const App = () => { const [isPending, startTransition] = useTransition(); const [showData, setShowData] = useState(false); const handleClick = () => { startTransition(() => { setShowData(prev => !prev); }); };\n\n return ( <div> <button onClick={handleClick}>Toggle Data</button> {isPending ? <p>Loading...</p> : null} <Suspense fallback={<div>Loading Data...</div>}> {showData && <DataComponent />} </Suspense> </div> ); }; export default App; ``` The question arises when I toggle the button to show or hide the `DataComponent`. Sometimes, it causes the entire UI to flicker or flash, especially if I rapidly click the button. I've tried adjusting the `Suspense` fallback, but that hasn't resolved the scenario. I also verified that there are no console errors or warnings. \n\nHas anyone else experienced this flickering behavior with `useTransition` and `Suspense`? What are some best practices to avoid such UI issues when conditionally rendering components? Am I missing something in my implementation? Any help would be greatly appreciated! I'd really appreciate any guidance on this. I'm developing on Windows 11 with Javascript. I'm open to any suggestions.