Boost Your React Performance with useMemo

🚀 Boost Your React Performance with useMemo!

We all know that React can re-render components unnecessarily, which can degrade performance. One way to optimize this is by using useMemo to memoize expensive calculations.

🔹 Why useMemo?
useMemo helps by caching the result of expensive functions, so they are recalculated only when necessary.

Example: Efficiently Calculating the Sum of an Array:

import { useMemo } from "react";

const numbers = [1, 2, 3, 4, 5];

const sum = useMemo(() => {
  console.log("Calculating sum...");
  return numbers.reduce((a, b) => a + b, 0);
}, [numbers]);

console.log(sum); // The sum is calculated only when numbers change!

Why use useMemo?
✅ Prevents unnecessary recalculations
✅ Improves component performance
✅ Helps in large-scale applications
💬 Have you used useMemo in your projects? Let me know how it helped you!