Расположение окна href внутри тега jquery replaceWith

var myhref = window.location.href + '/1/';
$('.the-tag p').replaceWith('<a href = "' + myhref + '">My Link</a>');

<script src = "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class = "the-tag">
  <p></p>
</div>

// Show an example with a fragment location
location.hash = "#anchor"

// Clone the current URL
const myhref = new URL(location)

// Handles cases where the current path
// does or does not end in a "/"
myhref.pathname = myhref.pathname.replace(//?$/, "/1/")

$('.the-tag p').replaceWith($("<a>", {
  href: myhref,
  text: "My Link"
}))

/* This is just so you can see the href */
a::after {
  content: " (" attr(href) ")";
  color: grey;
  font-size: .8rem;
}

<script src = "https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity = "sha256-4+XzXVhsDmqanXGHaHvgh1gMQKX40OUvDEBTu8JcmNs = " crossorigin = "anonymous"></script>
<div class = "the-tag" id = "anchor">
  <p></p>
</div>