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HTMLAreaElement: hash property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The hash property of the HTMLAreaElement interface is a string containing a "#" followed by the fragment identifier of the <area> element's href. If the URL does not have a fragment identifier, this property contains an empty string, "".
See URL.hash for more information.
Given this HTML
html
<map name="infographic">
<area
id="mdn-circle"
shape="circle"
coords="130,136,60"
href="https://developer.mozilla.org/#ExampleSection"
alt="MDN" />
</map>
<img
usemap="#infographic"
src="/media/examples/mdn-info.png"
alt="MDN infographic" />
you can get the hash of the area link like this:
js
const area = document.getElementById("mdn-circle");
area.hash; // '#ExampleSection'