Javascript DOM How to - Change attribute value basing on existing value








Question

We would like to know how to change attribute value basing on existing value.

Answer


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
window.onload=function(){<!--   w w w.ja va 2 s  .  c o  m-->
    var tags = document.getElementsByTagName("a");
    for(var i = 0, l = tags.length; i < l; i++) {
        tags[i].href = tags[i].href.replace('.kmz', '.kml');
    }
}
</script>
</head>
<body>
  <a href="aaa.kmz">1</a>
  <a href="eee.kmz">2</a>
  <a href="rrr.kmz">3</a>
</body>
</html>

The code above is rendered as follows: