The Element.after() method inserts a set of Node objects or strings in the children list of the Element's parent, just after the Element. Strings are inserted as equivalent Text nodes.
after(node1)
after(node1, node2)
after(node1, node2, /* …, */ nodeN)node1, …, nodeNA set of Node objects or strings to insert.
None (undefined).
HierarchyRequestError DOMExceptionThrown when the node cannot be inserted at the specified point in the hierarchy.
let container = document.createElement("div");
let p = document.createElement("p");
container.appendChild(p);
let span = document.createElement("span");
p.after(span);
console.log(container.outerHTML);
// "<div><p></p><span></span></div>"let container = document.createElement("div");
let p = document.createElement("p");
container.appendChild(p);
p.after("Text");
console.log(container.outerHTML);
// "<div><p></p>Text</div>"let container = document.createElement("div");
let p = document.createElement("p");
container.appendChild(p);
let span = document.createElement("span");
p.after(span, "Text");
console.log(container.outerHTML);
// "<div><p></p><span></span>Text</div>"