The head read-only property of the Document interface returns the <head> element of the current document.
An HTMLHeadElement.
<!doctype html>
<head id="my-document-head">
<title>Example: using document.head</title>
</head>const theHead = document.head;
console.log(theHead.id); // "my-document-head";
console.log(theHead === document.querySelector("head")); // truedocument.head is read-only. Trying to assign a value to this property will fail silently or, in Strict Mode, throws a TypeError.