deleteFromDocument()

<p>Try highlighting some of the elements in these paragraphs.</p>
<p>
  Once you do, you can remove the selected content by clicking the button below.
</p>
<h2>All of the selected text/nodes will be removed.</h2>
<button>Delete selected text</button>

let button = document.querySelector("button");
button.addEventListener("click", deleteSelection);

function deleteSelection() {
  let selection = window.getSelection();
  selection.deleteFromDocument();
}