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0 votes
0 answers
25 views

Does triggering component renders during animation frame wait til frame is done, or synchronously reflow/paints then finish the frame callback?

I've seen a few similar-ish questions but I'm struggling to find a definitive answer - any advice appreciated! Consider: you have a react component you have an animation loop running via ...
Matt's user avatar
  • 23
1 vote
1 answer
33 views

React - Prevent child re-render when browser resize

I have a react app with a scenario where a parent component with 3 different layouts where the child components are rendered. The layout (3 fragments (default) or 2 fragments or 1 fragment) is decided ...
user26586245's user avatar
0 votes
0 answers
35 views

requestAnimationFrame calculation speed does not catch up with scroll speed

I'm using requestAnimationFrame to simulate position fixed behavior. I update top position of the element each time the scroll event fired But when scrolling, I think requestAnimationFrame calculation ...
dtm's user avatar
  • 213
4 votes
1 answer
997 views

Does React only re-rendering what has changed benefit rendering speed?

Why does React's functionality of "only updating what's necessary" matter to performance? From https://facebook.github.io/react/docs/rendering-elements.html#react-only-updates-whats-necessary Does ...
George Pantazes's user avatar
-1 votes
1 answer
465 views

React jank performance optimization

While profiling the react application that I work on I see few frames duration as 300ms. Timeline results show 5.5 ms spent in rendering and 0.5 ms in scripting and painting and that adds up to 6 ms. ...
user2589022's user avatar
1 vote
1 answer
324 views

Inspect browser rendering performances on a mobile or phonegap application

I am developping a Phonegap application using nice UI tools, like ReactJS, with requestAnimationFrame and things like that. I am trying to have rendering performances of 60fps. According to this ...
Sebastien Lorber's user avatar