Introduction React JS is powerful, but many beginners struggle not because React is hard — but because of common mistakes made early on . These mistakes can lead to confusing bugs, poor performance, and messy code that becomes difficult to maintain. In this article, we’ll cover the most common React JS mistakes beginners make , explain why they happen , and show how to fix them properly . If you’re learning React or recently started building projects, this guide will save you hours of frustration. 1. Modifying State Directly One of the most frequent beginner mistakes is changing state directly instead of using the state updater function. ❌ Wrong Example count = count + 1 ; This does not trigger a re-render. ✅ Correct Way setCount (count + 1 ); Why This Matters React relies on state updates to know when to re-render . Direct mutation breaks that mechanism and causes unpredictable UI behavior. 2. Using State When It’s Not Needed Beginners often store everything in state...
Introduction React JS is powerful, but many beginners struggle not because React is hard — but because of common mistakes made early on . These mistakes can lead to confusing bugs, poor performance, and messy code that becomes difficult to maintain. In this article, we’ll cover the most common React JS mistakes beginners make , explain why they happen , and show how to fix them properly . If you’re learning React or recently started building projects, this guide will save you hours of frustration. 1. Modifying State Directly One of the most frequent beginner mistakes is changing state directly instead of using the state updater function. ❌ Wrong Example count = count + 1 ; This does not trigger a re-render. ✅ Correct Way setCount (count + 1 ); Why This Matters React relies on state updates to know when to re-render . Direct mutation breaks that mechanism and causes unpredictable UI behavior. 2. Using State When It’s Not Needed Beginners often store everything in state...