ReactJs Performance ~ Database and API Optimization~
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Frontend performance means nothing if API takes 3 seconds to respond. backend optimization is frontend optimization. API performance strategies: 1. Implement efficient data fetching: // Bad: Sequential fetches (slow) async function loadDashboard() { const user = await fetchUser(); const posts = await fetchPosts(user.id); const comments = await fetchComments(posts.map(p => p.id)); return { user, posts, comments }; } // Total time: ~600ms // Good: Parallel fetches (fast) async functi