spacer
Yehuda Shiran January 29, 2002
Waiting for XML Loading
Tips: January 2002

Yehuda Shiran, Ph.D.
Doc JavaScript

Developer News
Microsoft Shows Off Silverlight 4, IE9 Plans
Metasploit Expands Vulnerability Test Framework
HyperCard Reborn?

By default, XML loading is done asynchronously. When you start loading a file, the browser does not wait for the loading to complete but rather continues interpreting the script. Sometimes, this is undesirable; For example, when the first thing you want to do in the script is work on the XML object, but the XML object is not ready yet. Let's see an example:

<SCRIPT LANGUAGE="JavaScript">
<!--
function load2() {
  var xmldoc;
  xmldoc = new ActiveXObject("Msxml2.DOMDocument.3.0");
  xmldoc.load("mydvd.xml");
  alert(xmldoc.xml);
}
// -->
</SCRIPT>
Run it now. You'll get an empty alert box, because the object is not loaded yet. Let's add an assignment to the async property:

<SCRIPT LANGUAGE="JavaScript">
<!--
function load1() {
  var xmldoc;
  xmldoc = new ActiveXObject("Msxml2.DOMDocument.3.0");
  xmldoc.preserveWhiteSpace = true;
  xmldoc.async = false;
  xmldoc.load("mydvd.xml");
  alert(xmldoc.xml);
}
// -->
</SCRIPT>
Run it now. See the whole XML document displayed.


People who read this tip also read these tips:

Look for similar tips by subject:

internet.commediabistro.comJusttechjobs.comGraphics.com

Search:

WebMediaBrands Corporate Info

Legal Notices, Licensing, Permissions, Privacy Policy.
Advertise | Newsletters | Shopping | E-mail Offers | Freelance Jobs

webref The latest from WebReference.com Browse >
Rolling Out Your Own HTML Application Version Control · HTML 5: Client-side Storage · Working with Ajax Server Extensions
Sitemap · Experts · Tools · Services · Email a Colleague · Contact FREE Newsletters 
 The latest from internet.com
Wi-Fi Product Watch, November 2009 · Chip Market Recovering From '08 Collapse · Low-Cost Tools to Kickstart Your New Business