Practical Performance for React (Native): How common patterns slow down your app - Anna Doubková

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Talk recording from React Amsterdam 2019 Conference
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Practical Performance for React (Native)
React Native Track
There are quite a few theoretical concepts of writing good a React application, including popular functional programming approaches. However, few take into consideration the impacts these will have on performance of the application. In this talk you’ll find out how some commonly used patterns have an adverse effect on the speed of your app, and how to avoid using them. The talk explorse UI and state management but also dives into some native-specific issues and look at how to prevent them.
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[@zackarybrumfield2]

I’ve watched countless videos on how props causes rerendering and this was the one that finally made it make sense!

[@NADERalf]

One of the most useful talks on this subject.
Thank you very much.

[@mynextdev4960]

Wonderful video about react-native performance

[@punisher013]

fantastic speech!!!! exactly what i needed, you helped me a lot, i'm gonna to be react native perf. hero in my team thanks to you !! :-)

[@evilchis94]

Hey! Amazing video! Thank you for sharing us some best practices for React (native) developing. At the end we need to think we are the final users and develop smoother and more native feel like solutions to give the best experience as possible.

[@amitbairagya2496]

Awesome lecture on optimization! Thanks!

[@Maffoo]

Really useful, thanks :)

[@asmolmez8737]

Thanks!

[@diwakarprasad1744]

Wonderful content

[@tanmaymondal6785]

thanks a lot , exactly what i needed caused my app

[@sanjeevakaalex]

thanks

[@nduz1985]

how to reduce time at load module at cold start app? I use many component and library, and have many screen with reactnavigation? right now it spend 3-4 second at cold start?

[@supriyomonndal6199]

Geart video

[@alessandrob.g.4524]

She speaks lightning fast!

[@Maffoo]

One thing to add... saying "just use react-native-navigation" is not always the greatest advice. Yes, it may be technically more performant, but my god does it cause a wealth of issues. Unless you have real experience of different routing libraries, don't make the mistake I did and assume it would be a wonderful easy process. RNN treats all screens of your app as an individual sandboxed thread and so they can't communicate with each other; this can make things very complex very fast, especially maintaining state

[@ehsankhorasani_]

I can't find any way to lazy load react native components can you help

[@SumanRoy.official]

Use jQuery library to bind the component which you want to lazy load

[@ehsankhorasani_]

@@SumanRoy.official jquery 🤮

[@piyushabhisheksingh2911]

It's basics.

[@anazi]

Is this still relevant ?