Samuel Rivers-Moore SamuelRiversMoore
wojtekmaj
/ find-scroll-container.js
Last active
November 27, 2025 15:04
Find the nearest scrollable container.
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| const findScrollContainer = (element) => { | |
| if (!element) { | |
| return undefined; | |
| } | |
| let parent = element.parentElement; | |
| while (parent) { | |
| const { overflow } = window.getComputedStyle(parent); | |
| if (overflow.split(' ').every(o => o === 'auto' || o === 'scroll')) { | |
| return parent; |
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| function isAnimatedGif(src, cb) { | |
| var request = new XMLHttpRequest(); | |
| request.open('GET', src, true); | |
| request.responseType = 'arraybuffer'; | |
| request.addEventListener('load', function () { | |
| var arr = new Uint8Array(request.response), | |
| i, len, length = arr.length, frames = 0; | |
| // make sure it's a gif (GIF8) | |
| if (arr[0] !== 0x47 || arr[1] !== 0x49 || |