React.js ~use() hook for Caching Problem~
The article discusses the caching problem encountered when using the React.js use() hook with promises in Client Components. It highlights the issue of creating a new promise on every render, leading to an infinite loop. Several solutions are proposed, including creating promises in parent components, using a module-level cache, and utilizing data fetching libraries.
- ▪Creating a new promise on every render causes an infinite suspension loop in React components.
- ▪One solution is to create the promise in a parent or Server Component to maintain a stable reference across renders.
- ▪Using a module-level cache allows the same promise reference to be returned on subsequent calls, preventing the infinite loop.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 2091087) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Ogasawara Kakeru Posted on May 24 React.js ~use() hook for Caching Problem~ #webdev #react #learning #frontend This is where most tutorials stop. But if you try to use use() with a promise created inside a Client Component, you will hit a subtle and frustrating bug.
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