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@hirbod
hirbod / expoAnimatedWebPforIOSandAndroid.md
Last active January 10, 2024 09:11
expo-config-plugin: animated webP support for Expo SDK44+ and Custom Dev Client (with FastImage) support

I recommend to not use this anymore. Switch over to expo-image

If anybody needs animated webP support with Expo (Custom Dev Client) for the native <Image /> and <FastImage /> (read comments):

Android

// create a file like plugins/withAnimatedWebPSupport.js -> this is for the native <Image />

const {
@paulirish
paulirish / what-forces-layout.md
Last active April 14, 2024 08:07
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent