getElementsByTagName().length returns zero

NodeList is a live collection and non-deferred scripts execute immediately (see script defer).

Try this and you will get an idea of what happens:

<html>
<head>
  <title></title>
  <style></style>
  <script type="text/javascript">
    var elements = document.getElementsByTagName("div");
    alert(elements.length); 
  </script>
</head>
<body>
  <div>1</div>
  <script type="text/javascript">
    //var elements = document.getElementsByTagName("div");
    alert(elements.length); 
  </script>
</body>
</html>

Tags:

Javascript

Getelementsbytagname

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