The hreflang property of the HTMLLinkElement interface is used to indicate the language and the geographical targeting of a page. This hint can be used by browsers to select the more appropriate page or to improve SEO.
It reflects the hreflang attribute of the <link> element and is the empty string ("") if there is no hreflang attribute.
A string that contains a language tag, or the empty string ("") if there is no hreflang attribute.
<link
rel="alternate"
href="www.example.com/fr/html"
hreflang="fr"
type="text/html"
title="French HTML" />
<p class="tag"></p>.tag {
margin-left: 20px;
font-weight: bold;
font-size: 24px;
}const myLink = document.querySelector("link");
const pTag = document.querySelector(".tag");
pTag.textContent = myLink.hreflang;HTMLAnchorElement.hreflang property