Inserts an HTML string before the start of the specified element.
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>
JavaScript, Browser
Inserts an HTML string after the end of the specified element.
JavaScript, Browser
Checks if the given element has the specified class.
JavaScript, Browser
Sets the value of a CSS rule for the specified HTML element.