elementContains.md

title	tags	author_title	author_url	author_image_url	description	image
elementContains	browser,intermediate	Deepak Vishwakarma	https://github.com/deepakshrma	https://avatars2.githubusercontent.com/u/7682731?s=400	Implementation of "elementContains" in typescript, javascript and deno.	https://www.positronx.io/wp-content/uploads/2018/11/positronx-banner-1152-1.jpg

Returns true if the parent element contains the child element, false otherwise.

Check that parent is not the same element as child, use parent.contains(child) to check if the parent element contains the child element.

const elementContains = (parent, child) =>
  parent !== child && parent.contains(child);

elementContains(
  document.querySelector("head"),
  document.querySelector("title")
); // true
elementContains(document.querySelector("body"), document.querySelector("body")); // false