30-seconds-of-code/javascript/snippets/insert-before.md

title, type, tags, cover, dateModified

title	type	tags	cover	dateModified
Insert HTML string before element	snippet	browser	engine	2020-10-20T23:02:01+03:00

Inserts an HTML string before the start of the specified element.

• Use Element.insertAdjacentHTML() with a position of 'beforebegin' to parse htmlString and insert it before the start of el.

const insertBefore = (el, htmlString) =>
  el.insertAdjacentHTML('beforebegin', htmlString);

insertBefore(document.getElementById('myId'), '<p>before</p>');
// <p>before</p> <div id="myId">...</div>