JavaScript previousElementSibling VS previousSibling الفرق بين دالة previousElementSibling ودالة previousSibling في جافا سكريبت

<!DOCTYPE html>
<html>
<head>
    <title>JavaScript previousElementSibling</title>
</head>
<body>
<h1 id="h1">JavaScript previousElementSibling</h1>
<p id="paragraph">from CloseTag previousElementSibling</p>
<script>
  let p = document.getElementById('paragraph')
  /* check console */
  console.log(paragraph.previousElementSibling)
</script>
</body>
</html>

<!DOCTYPE html>
<html>
<head>
    <title>JavaScript previousSibling</title>
</head>
<body>
<h1 id="h1">JavaScript previousSibling </h1>
<p id="paragraph">from CloseTag previousElementSibling</p>
<script>
  let paragraph = document.getElementById('paragraph')
  /* check console */
  console.log(paragraph.previousSibling)
</script>
</body>
</html>