Learn useMemo React Hook in 10 Minutes | React Hooks Tutorial for Beginners

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In this video we are going learn everything about React Hook useMemo. How we can use useMemo hook to memorize the output of a expensive function in our component that will help to optimize the performance of our component. We will also see how we can use the useMemo hook for Referential Equality for passing as props non-primitive JavaScript datatypes functions, objects and array.

***Checkout pre-requites videos in case you have missed ***

🔥 Covered 👇
- useMemo for memorize the value
- useMemo for Referential Equality

***Checkout these video to understand better***

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It doesn't feel good to have a disclaimer in every video but this is how the world is right now.
All videos are for educational purpose and use them wisely. Any video may have a slight mistake, please take decisions based on your research. This video is not forcing anything on you.

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great explanation for beginners. Thank you soo much

rajashekar

best explanation ever I seen on YouTube

brajesh

Great dipesh sir...outstanding explanation...please make on redux thunk and Saga video

DeepakGupta-pzfx

sir plz make learn react with project with all new updates like you made earlier contact manager app. that will be more helpful and interesting..

brajesh

in the first useCase of useMemo hook, you wrapped the factorial function inside useMemo hook and pass the dependency as [count]. The same can be achieved by using useEffect hook. eg=> const result; useEffect((result= factorial(num)), [count]);
so, what's the difference between the two hooks (useMemo and useEffect) in current scenario.

advancedtodo