"Node was not found" error

yawnmoth

When I visit the following webpage:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test</title>
</head>

<body>
<div id="demo">this is a test...</div>
<script>
result = document.create Element("span") ;
result.style.co lor = "#f00";
result.style.fo ntWeight = "bold";
result.appendCh ild(document.cr eateTextNode(" ...that has been a
success"));

var demo = document.getEle mentById("demo" );

demo.parentNode .replaceChild(d emo,result);
</script>
</body>

I get this error (in FF2):

uncaught exception: [Exception... "Node was not found" code: "8"
nsresult: "0x80530008
(NS_ERROR_DOM_N OT_FOUND_ERR)" location:
"http://www.domain.tld/test.html Line: 17"]

Nov 9 '06 #1

Subscribe Reply

14373

David Golightly

yawnmoth wrote:

When I visit the following webpage:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test</title>
</head>

<body>
<div id="demo">this is a test...</div>
<script>
result = document.create Element("span") ;
result.style.co lor = "#f00";
result.style.fo ntWeight = "bold";
result.appendCh ild(document.cr eateTextNode(" ...that has been a
success"));

var demo = document.getEle mentById("demo" );

demo.parentNode .replaceChild(d emo,result);
</script>
</body>

I get this error (in FF2):

uncaught exception: [Exception... "Node was not found" code: "8"
nsresult: "0x80530008
(NS_ERROR_DOM_N OT_FOUND_ERR)" location:
"http://www.domain.tld/test.html Line: 17"]

Take a closer look at this:

http://developer.mozilla.org/en/docs...t.replaceChild

The parameters should be replaceChild(ne w, old) and you've got
replaceChild(ol d, new).

Also I would discourage you from using script tags within the <body>
section of your document, unless you have a good reason to do so (and
there aren't many). Put the <scripttag in the <headsection and
wrap your code in a window.onload handler, like this:

<head>
<title>Test</title>
<script>
window.onload = function() {
var something = document.getEle mentById('somet hing');
// ... code goes here
}
</script>
</head>
<body>
<div id="something"> </div>
</body>
</html>

Check out http://www.onlinetools.org/articles/...ivejavascript/
for some good, modern Javascript style.

Nov 9 '06 #2

Randy Webb

David Golightly said the following on 11/9/2006 5:39 PM:

<snip>

Also I would discourage you from using script tags within the <body>
section of your document, unless you have a good reason to do so (and
there aren't many). Put the <scripttag in the <headsection and
wrap your code in a window.onload handler, like this:

<snip>

<script>
window.onload = function() {
var something = document.getEle mentById('somet hing');
// ... code goes here
}
</script>

And you call that "good, modern Javascript style" to leave out the type
attribute (which is mandatory)? No feature detection. Hmmm.

Also, could you please explain how to wrap code in a function that uses
document.write to add advertisement to pages and fire it onload without
wiping out the page?

<snip>

Check out http://www.onlinetools.org/articles/...ivejavascript/
for some good, modern Javascript style.

If the free chapter is indicative of the entire book, no thanks.

--
Randy
Chance Favors The Prepared Mind
comp.lang.javas cript FAQ - http://jibbering.com/faq
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

Nov 10 '06 #3

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