“JS добавить текст после div” Ответ

JS добавить текст после div

'beforebegin' Before the element itself.
'afterbegin' Just inside the element, before its first child.
'beforeend' Just inside the element, after its last child.
'afterend' After the element itself.
let div = document.getElementById('parentDiv');
div.insertAdjacentText('afterbegin', 'My Plain Text..');