Is Javascript js File Loaded?
I learned a little coding tip over the weekend. I was monkeying around with Microsoft's mapping mashup, and I found that every now and then I'd get an Javascript error. Basically saying that the function I was calling did not exist. I came up with the following idea to deal with the problem:
<html>
<head>
<title>Sample Page</title>
<script src="Includes/sample.js"
language="Javascript"></script>
<script language="Javascript">
function initPage() {
if (sampleFunc == null) {
setTimeout("initPage()",100);
return false;
} // end if
// now that it exists, call it!
sampleFunc();
} // end of function initPage()
</script>
</head>
<body onload="initPage()">
</body>
</html>
<head>
<title>Sample Page</title>
<script src="Includes/sample.js"
language="Javascript"></script>
<script language="Javascript">
function initPage() {
if (sampleFunc == null) {
setTimeout("initPage()",100);
return false;
} // end if
// now that it exists, call it!
sampleFunc();
} // end of function initPage()
</script>
</head>
<body onload="initPage()">
</body>
</html>
This little sample will give the web browser more time to download the sample.js file. But it will do it in such a way as to not lock up the entire browser whilst it's waiting!
Labels: javascript
posted by Orville Chomer @ 5/08/2007
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