Stop Rerender with useMemo Hook | Learn React

Описание: In this video, you will learn the **useMemo Hook in React JS**—how it works,
when to use it, and how it helps in performance optimization by preventing
unnecessary recalculations and re-renders.

What you will learn:
Introduction
Why performance optimization matters in React
What is useMemo Hook?
Expensive calculation without useMemo
Optimizing with useMemo
Example 2: useMemo with dependency array

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