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<!DOCTYPE html>
<html>
<head>
<link id="myLink" href="domoarigato.html" hreflang="ja">
</head>
<body>
​
<p>Click the button to change the language code of the linked document.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  document.getElementById("myLink").hreflang = "en-us";
  document.getElementById("demo").innerHTML = "The language code was changed from 'ja' to 'en-us'.";
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_link_hreflang2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:17:45 GMT -->
</html>
​
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