Quick Fix: How to Stop “React Component Not Updating” Issues

Common Causes

• Mutating state directly instead of using {setState} or {useState} setter

• Using stale closures inside event handlers or effects

• Forgetting to add dependencies in {useEffect}

• Memoization (React.memo) preventing updates unintentionally

Quick Solutions

• Never mutate state directly — always create new copies with spread operator or Object.assign.

• Check your hooks’ dependency arrays — make sure you include everything you use inside useEffect.

• Use functional updates if state depends on previous state:
  

setCount(prev => prev + 1);

• Be careful with memoization — if a component uses React.memo, ensure its props actually change.

Bonus Debug Tip
Add console logs inside render or effects to track when your component updates.