isUndefinedOrNull function : isUndefinedOrNull « Mochkit « JavaScript DHTML






  1. JavaScript DHTML
  2. Mochkit
  3. isUndefinedOrNull

isUndefinedOrNull function

 
<!--
MochiKit is dual-licensed software.  It is available under the terms of the
MIT License, or the Academic Free License version 2.1.  The full text of
each license is included below.
-->

<!-- Code revised from MochiKit demo code -->

<html>
<head>
    <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Base.js"></script>
    <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Iter.js"></script>
    <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/DOM.js"></script>
    <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Style.js"></script>
    <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Logging.js"></script>
    <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Iter.js"></script>
</head>
<body>

<pre id="test">
<script type="text/javascript">
    alert( isUndefinedOrNull(null));
    alert( isUndefinedOrNull(""));
    alert( isUndefinedOrNull(undefined) );
    alert( isUndefinedOrNull({}.foo));


</script>
</pre>
</body>
</html>








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