would trigger this useEffect twice: useEffect(() => { console.log('do something as initial state of onChainNFTs changed'); // triggered 2 times }, [onChainNFTs]); I confirmed that the component MOUNTED ONLY ONCE and setOnChainNFTs was NOT called more than once - so this was not the issue. See more This one should be obvious, your component is in the page a couple of times and each one will mount and run the useEffect See more The component is being forced to unmount and remount on its initial render. This could be something like a "key" change happening higher up the tree. you need to go up each … See more This answer was pointed out by @johnhendirx and written by @rangfu, see link and give him some love if this was your problem. If you're having issues because of this it usually means you're not using useEffect for its … See more WebFeb 9, 2024 · While useEffect is designed to handle only one concern, you’ll sometimes need more than one effect. When you try to use only one effect for multiple purposes, it …
React useEffect hook event listener fired twice - Stack …
WebMay 5, 2024 · The useEffect callback runs twice for initial render, probably because the component renders twice. After state change the component renders twice but the effect … WebJul 1, 2024 · How to stop useEffect from running twice on mount or first render in React - YouTube 0:00 / 12:28 How to stop useEffect from running twice on mount or first render in React Dave Gray... how to steam rice in ninja foodie
React 18 useEffect runs twice Techiediaries
WebApr 4, 2024 · When strict effects are enabled, React intentionally double-invokes effects ( mount -> unmount -> mount) for newly mounted components in development mode. Interestingly, useInsertionEffect is not called twice. Execute npm run build, and serve -s build. We can verify that in production mode, this app is only mounted once. WebDec 22, 2024 · Why does this React's useEffect () fires twice after loaded? It doesn't. The function Editor runs again because you call setIsLoaded and setCurrentData once the … WebApr 25, 2024 · For React Hooks in React 18, this means a useEffect() with zero dependencies will be executed twice. Here is a custom hook that can be used instead of … how to steam raw oysters