useMemo Hook in React

useMemo:

• useMemo is a React Hook used for performance optimization.

• It returns a memoized value by storing the result of an expensive calculation in memory (cache) and reusing it during rerenders.

• React recalculates the value only when one of its dependencies changes, helping avoid unnecessary calculations and improve application performance.

syntax:
const memoizedValue = useMemo(() => {
return calculation;
}, [dependencies]);