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Get the first scrollable parent of an element

Written byPhuoc Nguyen
Level 2 — Intermediate
27 Feb, 2020
Last updated
04 Apr, 2020
Starting from the given `ele` element, we traverse all parents up to the root of document (`document.body`). For each parent node, we check if it is a scrollable node.
const isScrollable = function (ele) {
const hasScrollableContent = ele.scrollHeight > ele.clientHeight;

const overflowYStyle = window.getComputedStyle(ele).overflowY;
const isOverflowHidden = overflowYStyle.indexOf('hidden') !== -1;

return hasScrollableContent && !isOverflowHidden;

const getScrollableParent = function (ele) {
return !ele || ele === document.body
? document.body
: isScrollable(ele)
? ele
: getScrollableParent(ele.parentNode);

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