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/** | |
* This script transforms animated webp files which are not widely supported yet | |
* to simple animated webm. Please state the source of your share this. | |
* | |
* # How this works | |
* This script depends on ffmpeg and libwebp provided by Google. Make sure | |
* they're in your PATH. | |
* | |
* The way this works is based off this answer https://askubuntu.com/a/1141049. | |
* It starts by extracting the input webp frames to a ./frames directory and, |
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.
elem.offsetLeft
,elem.offsetTop
,elem.offsetWidth
,elem.offsetHeight
,elem.offsetParent