React Native Performance Optimisation (useMemo, useCallback, memo)

Рет қаралды 50,619

Жыл бұрын

In this video, we'll show you how to improve the performance of your application by employing three distinct techniques: useMemo, useCallback, and memo.
By the end of this video, we had increased our application's performance score by an insane +301,71%, so make sure to follow along to do the same for your app!
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This video is not sponsored by anyone
Disclaimer: This build is for educational purposes only!! All views, opinions, technology choices expressed in this video are my own and do not represent the views, opinions, technology choices of any entity whatsoever with which I have been, am now, or will be affiliated.
#VadimSavin #notjustdev #reactnative

Пікірлер: 83

@mateuszpusiewicz8851 Жыл бұрын

Amazing video! Tutorial on flipper would be great to see 🤩

@eduardocabrera9710 8 ай бұрын

Thanks for the clearest explanation I have ever seen until now. Those examples were amazing, besides the demonstration convinced me to stop ignoring those react tools anymore.

@ashishmehra2661 Жыл бұрын

Serious stuff. Thanks for sharing.

@jahidunnurmaheeofficial2089 11 ай бұрын

What a video! Last 2 weeks I was struggling with react native performance issue. I search in google and everywhere but finally I found a complete solution. Thanks dude!

@mounteverest4013 Жыл бұрын

Thanks a lot for this. Apply this ASAP

@anazi Жыл бұрын

Really good example and amazing explaination 👍👍 Much appreciated.

@stf8375 Жыл бұрын

Amazing and super well explained thanks !!!

@chetanbawankule8843 Жыл бұрын

Thank you for this This is going to be very helpful

@ko_rizki 8 ай бұрын

that was a clear explanation, thanks, love it.

@carlosceronsantacruz6854 Жыл бұрын

Amazing video, Good job

@parthkolgiri7501 7 ай бұрын

Some quality stuff mate!!

@comment-dev Жыл бұрын

Good explanation to optimize rn 🤝

@HaiTran-tz7hm Жыл бұрын

Thank u for the really good example bro 🤘

@minusmarigold98 4 ай бұрын

Wow , really thanks man i needed that a lot!

@notjustdev 3 ай бұрын

Glad it helped!

@manikantsharma6108 7 ай бұрын

Well understood, great video

@WOW-fo8gx 10 ай бұрын

Great video. Thanks a lot.

@trendscene5374 Жыл бұрын

Mesmerizing

@felipemelendez5741 Жыл бұрын

This was awesome, thanks!

@henrycovil2629 9 ай бұрын

flipper plugin!!! Maybe it's still relevant for you

@lubwamaemmanuel7743 2 ай бұрын

Learn something beautiful for my react native projects. Kudos bruv

@notjustdev 2 ай бұрын

Glad you learned something new 🚀

@calebcadainoo Жыл бұрын

Interesting will explore the Flipper too 😉

@oneafrodev Жыл бұрын

well understood!

@JanghyupLee Жыл бұрын

Very easy to understand :)

@brainpowerofficial1207 Жыл бұрын

Amazing from my crew

@brainpowerofficial1207 Жыл бұрын

Vadim if you can make a booking app. We will be waiting

@sykn3z Жыл бұрын

Great example and thank You!!!! Can You please do it with more complex ítems. Using custom hooks, redux selectors and fetching data. It would be extremly helpful

@parthkolgiri7501 7 ай бұрын

Yes please

@jabbarahmad5095 Жыл бұрын

Amazing

@SahilSharma-ws1oz 5 ай бұрын

Amazing thanks you ❤

@ajagannath898 7 ай бұрын

Excellent explanation bro never show in pratical way in KZfaq ❤❤❤❤

@geohn8238 4 ай бұрын

Powerful video 👌🏼💪

@notjustdev 4 ай бұрын

Thank you 🙌

@abdallasuliman8165 8 ай бұрын

Nice explanation and example, needs more clarification on useMemo vs useCallback.

@VickysTuition 10 ай бұрын

Thank you 👍👍👍

@venkynavindla6795 10 ай бұрын

U R D BEST!

@sudharsan685 Жыл бұрын

Usefull video 👌

@anazi Жыл бұрын

We need an explanation on "rendered fewer hooks than expected" This is killing me.

@rajkamalsingh2547 Жыл бұрын

Great, Is there any article where i integrate or use flipper into my react native app.

@abdelazizelmehammedy9376 Жыл бұрын

Thanks for your good tutorial I have a request for you can you please make a react native app which uses the react-query along with AsyncStorage persistance to make offline mutations that resumes after going back online thanks in advance

@amiribrahim01 Жыл бұрын

Thank you

@JkeyKong 7 ай бұрын

where to download the performance test tool in your video? I also want to test my react native performance like you

@doniaelfouly4142 Жыл бұрын

thanks

@congdung7599 Жыл бұрын

Can you do a video how to add RN Perf monitor in react native project?

@jakubmuzik3296 10 ай бұрын

Hello, would it be possible to wrap the flatlists renderitem in useCallback function instead of using the Reat.memo on the child component? Would it have the same result ?

@FauziJabbar Жыл бұрын

Coollll this's i find... mantap mas bruh

@hascardenas Жыл бұрын

Thanks for such a helpful video, I'd like to know if you are using Expo or React Native CLI on this video

@lukasgrinevicius5868 Жыл бұрын

Thanks! We’re using React Native CLI here

@hascardenas Жыл бұрын

Thanks Lukas, I’d really like a video about config Flipper with Expo, I haven’t found any clear tutorial about it. Just a suggestion heheh 😆 thanks for answering

@asqarpubgmobile Жыл бұрын

Cool😎

@andrepadez Жыл бұрын

Awesome! What is the tool you're using to check performance?

@AnksioXD 9 ай бұрын

its called Flipper

@rodelcrisosto499 Жыл бұрын

can you please make a guide about flipper?

@showbikshowmma3520 Жыл бұрын

Is this valuable for large scale dynamic applications.

@touseefamjad416 Жыл бұрын

Good sir can you please send me tha video link that define pagination in flast list because i see a large number of list is bad performance in flatlist

@shadic7858 9 ай бұрын

Memo also works when the component props includes an array?

@necmettinsargn3934 Жыл бұрын

Last time I tried work with flipper but it was very hard to start it. Is it easy now?

@areebchoudhary3785 2 ай бұрын

Great work buddy, Love from Pakistan 💚🤍

@notjustdev 2 ай бұрын

Thank you!

@sashomilenov2630 Жыл бұрын

Great example! Could you tell me the name of the app that you are using for performance check? thank you.

@bryanmehall2208 Жыл бұрын

flipper

@rohitbansal9183 11 ай бұрын

Performance montor is not showing in disabled section in the flipper... Anything I need to add from the code side.

@applicationdeveloper9057 Жыл бұрын

Hello i'm using same technique that you shwon still my logs appear every time on click can you help me ?

@ziahazara1250 Жыл бұрын

What is the applications name by which you tested your applications performance? Can you please share it thanks 😃

@mariafailli5558 Жыл бұрын

Flipper

@gouravnainwaya5669 Жыл бұрын

please make a file transfer app, a vpn app in react native without aws

@aidanwalker3058 8 ай бұрын

How do I install flipper on expo?

@beingMeditative56 9 ай бұрын

'We are trying to check if those objects are allocated in the same space in memory", I heard this at 7:18 sec in video. Same space in memory or same object in memory ?? Got confused here, please clarify.

@milon27 10 ай бұрын

my react natiave app is showing that not able to use Rn perf monitor , why so?

@JKholmatov Жыл бұрын

I am updating location state via watchposition, and a component that does not include location props is re-rendering anyway, what can be the reason?

@stan_de Жыл бұрын

Is this a nested component? Then you should wrap it with memo and see Magic ;) When state changes - it will re-render component, hence it will also re-redender nested components as well.

@wailynnoo3498 2 ай бұрын

May i know your debugging tools ?

@LanzRuizDesigns Жыл бұрын

hello may i know what platform you are using to test that react native app?

@LanzRuizDesigns Жыл бұрын

In the following question..do you have github for that demo?

@zksofficial-zh1gh 11 ай бұрын

Need flipper tutorial

@JokeryEU Жыл бұрын

why not use flashList ? instead of flatList

@notjustdev Жыл бұрын

We have a separate video about FlashList, this one we wanted to keep focused on memo, useMemo and useCallback

@nishantmogha7679 Жыл бұрын

Can you please just increase the font size its really hard to see.

@bilalrasool8696 7 ай бұрын

Can you assist me in determining which version of Flipper is suitable, considering that Flipper has been deprecated. Additionally, React Native Debugger is not functioning with Expo SDK 49, and I'm encountering challenges using Redux in Expo SDK 49.

@alexfrozen Жыл бұрын

I declined usage of absolutely all react hooks. Even useState. Only props for decompositions. The only one render at the start. There is a game changer, Reanimated. It's really possible.I've forgot all these re-render nightmare. And have got absolute magic of animations, transitions, swipes and so on. So I heavily recommend research Reanimated in depth instead of all these stuff in video.

@ThomazMartinez Жыл бұрын

You dont need memo for this FFS dude, you just need to put that component where you have state changes in seperate component thats it, using memo stuff for everything it shows you have no clue what you doing