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CharacterData: after() method - Web APIs | MDN
nodes
A set of Node
objects or strings to insert.
HierarchyRequestError
DOMException
Thrown when the new nodes cannot be inserted at the specified point in the hierarchy,
that is if one of the following conditions is met:
The after()
method allows you to insert new nodes after a CharacterData
node.
const h1TextNode = document.querySelector("h1").firstChild;
h1TextNode.after(" #h1");
h1TextNode.parentElement.childNodes;
// NodeList [#text "CharacterData.after()", #text " #h1"]
h1TextNode.data;
// "CharacterData.after()"
Note:
If you rather want to append text to the current node,
the appendData()
method lets you append to the current node's data.