Issue with Array filtering in React causing performance lag on large datasets
I recently switched to I'm trying to implement After trying multiple solutions online, I still can't figure this out... I'm upgrading from an older version and I'm getting frustrated with I've been struggling with this for a few days now and could really use some help. This might be a silly question, but I'm working on a React application where I'm trying to filter a large array of user objects based on a search query... The array can have up to 50,000 entries, and the filtering is done using `Array.prototype.filter`. However, I'm experiencing significant performance issues when the input changes, which leads to noticeable lag in the UI. Here's my code snippet for the filtering logic: ```javascript const [searchTerm, setSearchTerm] = useState(''); const [filteredUsers, setFilteredUsers] = useState([]); useEffect(() => { const results = users.filter(user => user.name.toLowerCase().includes(searchTerm.toLowerCase()) ); setFilteredUsers(results); }, [searchTerm, users]); ``` While it works, the lag is noticeable when typing in the search input. I've tried debouncing the input, which helps a bit, but it still feels sluggish. Here's how I've implemented the debounce: ```javascript const debounce = (func, delay) => { let timeoutId; return (...args) => { if (timeoutId) clearTimeout(timeoutId); timeoutId = setTimeout(() => { func(...args); }, delay); }; }; const handleSearchChange = debounce((event) => { setSearchTerm(event.target.value); }, 300); ``` Even with debouncing, on larger datasets, the performance isn't ideal. Is there a more efficient way to filter large arrays in a React application, or should I consider using a different approach like virtualization or a library specialized in handling large collections? I'd appreciate any tips or best practices to improve the performance here. For context: I'm using Javascript on Ubuntu. I'm working on a CLI tool that needs to handle this. What's the best practice here? I'm on CentOS using the latest version of Javascript. Any advice would be much appreciated. This is for a mobile app running on Windows 10. Thanks, I really appreciate it! I'm working on a microservice that needs to handle this. Hoping someone can shed some light on this. Any ideas what could be causing this?