The HTMLAnchorElement.hash property returns a string containing a '#' followed by the fragment identifier of the URL.

The fragment is not URL encoded. If the URL does not have a fragment identifier, this property contains an empty string, "".

A string.

Given this HTML

<a id="myAnchor" href="/en-US/docs/HTMLAnchorElement#Examples">Examples</a>

you can get the hash of the anchor like this:

const anchor = document.getElementById("myAnchor");
anchor.hash; // returns '#Examples'

• The HTMLAnchorElement interface it belongs to.