<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.0/jquery.min.js"></script>
</head>
<body>
<a href="www.example.com">Link</a>
<script>
$("a").attr("href", "https://www.w3docs.com");
</script>
</body>
</html>