Which hook helps prevent unnecessary re-renders of components in React Native?

Problem Statement

Explanation

useMemo caches the result of a function between renders so it only recalculates when dependencies change. It prevents expensive operations from running unnecessarily, improving performance during re-renders.

Code Solution

SolutionRead Only

const value = useMemo(() => computeExpensiveValue(a, b), [a, b]);

Practice Sets

This question appears in the following practice sets:

Performance Optimization & Debugging

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Which hook helps prevent unnecessary re-renders of components in React Native?

Problem Statement

Explanation

Code Solution

Practice Sets

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Master Interviews Anywhere, Anytime

Which hook helps prevent unnecessary re-renders of components in React Native?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

What is React Native primarily used for?

Which statement best describes the difference between React and React Native?

Which of the following is NOT a core React Native component?

What does the React Native bridge do?

What is the key difference between state and props in React Native?

More from React Native

Master Interviews
Anywhere, Anytime