Javascript DOM How to - Set custom DOM element properties

Question

We would like to know how to set custom DOM element properties.

Answer


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
window.onload=function(){<!--  w ww  . j  a va2s  .  c  o m-->
    var div = document.getElementById( 'test' );
    div.dataset.baz = 'bar';
    console.log( div.dataset.baz );
}
</script>
</head>
<body>
  <div id="test"></div>
</body>
</html>

The code above is rendered as follows: