Entry

How I use the method hasOwnProperty?

How I use the method hasOwnProperty?

Apr 15th, 2005 05:08
Martin Honnen,

The method hasOwnProperty takes one argument, the property name to check
for, and returns true if the XMLList object has a property of that name
and false otherwise.
Here are some examples:
  var godList = <>
    <god>
      <name>Kibo</name>
      <home>http://www.kibo.com/</home>
    </god>
    <devil>
      <name>Kibo</name>
    </devil>
  </>;
  alert(godList.hasOwnProperty('name')); // shows 'true'
  alert(godList.hasOwnProperty('home')); // shows 'true'
  alert(godList.hasOwnProperty('power')); // shows 'false'
  alert(godList.hasOwnProperty('*')); // shows 'true'
  alert(godList.hasOwnProperty('0')); // shows 'true'
  alert(godList.hasOwnProperty('2')); // shows 'false'