10 мар. 2020 г. · The problem is, useEffect is triggered twice when I check with console.log. The code is thus querying the same data twice, which should be avoided. Why useEffect running twice and how to handle it well in React? Basic React app is triggering useEffect twice [duplicate] Why is useEffect running twice? - reactjs - Stack Overflow React useEffect called twice even with strict mode disabled Другие результаты с сайта stackoverflow.com

15 февр. 2024 г. · In React 18+, useEffect runs twice in development due to StrictMode simulating remounting.

11 февр. 2023 г. · The useEffect hook is called multiple times because it is designed to re-run whenever certain values (referred to as dependencies) change.

24 мая 2024 г. · useEffect is called twice in React when strict mode is enabled in development mode. This is a feature to help you ensure that your effects are not dependent on ...

7 мая 2024 г. · Removing Strict Mode can sometimes resolve the issue of useEffect running twice by eliminating these additional checks and allowing the ...

14 янв. 2023 г. · A simple workaround to ensure that useEffect is only triggered once in the development environment with Strict mode enabled.

5 мая 2022 г. · The useEffect callback runs twice for initial render, probably because the component renders twice. After state change the component renders twice but the ...

11 авг. 2024 г. · Strict mode doesn't run effects twice when not in dev mode. When strict mode isn't enabled, effects aren't run twice just because it's dev mode.

20 сент. 2023 г. · The real conundrum here is why the useEffect hook, seemingly designed to run once with an empty dependency array, can execute twice. To ...

25 апр. 2022 г. · For React Hooks in React 18, this means a useEffect() with zero dependencies will be executed twice.