What is useMemo() ?

useMemo() is a React Hook used to memoize the result of expensive computations within functional components. It memorizes the value returned by a provided function and re-calculates it only when the dependencies change.

Syntax of useMemo():

const memoizedValue = useMemo(() => computeExpensiveValue(dep1, dep2), [dep1, dep2]);

Implementation of React.memo() and useMemo() in React

React.memo allows functional component to have same optimization as Pure Component provides for class-based components. useMemo is for memoizing function’s calls inside functional component.

Similar Reads

What is React.memo() ?

React.memo() is a higher-order component (HOC) provided by React that memoizes functional components. It means that it caches the result of the component’s rendering based on its props, and re-renders only when the props have changed....

What is useMemo() ?

useMemo() is a React Hook used to memoize the result of expensive computations within functional components. It memorizes the value returned by a provided function and re-calculates it only when the dependencies change....

Features:

Efficient Rendering: Utilize React.memo() to prevent unnecessary re-renders of components, ensuring optimal performance, especially with complex UIs.Memoization of Filtered Data: Employ useMemo() to memoize the filtered data based on user input, reducing redundant computations and enhancing responsiveness.Dynamic Filtering: Implement dynamic filtering functionality, allowing users to search and filter through large datasets with minimal performance impact.Real-time Updates: Ensure that the list component updates in real-time as users interact with the filter input, providing a seamless and responsive user experience.Scalability: Design the solution to handle large datasets efficiently, ensuring that performance remains consistent even as the volume of data grows.Easy Integration: The optimized list component can be easily integrated into various React applications, providing developers with a reusable and performant solution for managing lists....

Steps to Create a React App:

Step 1: Create a new React.js project and install the required dependencies:-...

Contact Us