React useMemo Hook: A Comprehensive Guide |

Published: 25 July 2023
on channel: Dev Code
74
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In this video, I will teach you all the use cases of the useMemo hook in React. I will start by explaining what memoization is and how it can be used to improve the performance of your React applications. Then, I will show you how to use useMemo to cache the results of expensive calculations, to create memoized functions, and to avoid re-rendering components when their props do not change.

By the end of this video, you will have a solid understanding of how to use useMemo to improve the performance of your React applications.

Link to the code: https://codesandbox.io/s/gracious-mar...

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Video Chapters:
0:00 - Why you need useMemo ?
0:37 - Learning about useMemo Hook
1:36 - 1st use case of useMemo
4:51 - 2nd use case of useMemo
5:06 - reference v/s value
9:04 - Outro
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