XML DOM compareDocumentPosition() Method
 Complete Element Object Reference
Definition and Usage
The compareDocumentPosition() method compares the document position of the
current node, with a specified node, according to the document order.
Syntax
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elementNode.compareDocumentPostition(node)
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| Parameter |
Description |
| node |
Required. Specifies the node to compare with the current
node |
Example
The following code fragment loads "books.xml"
into xmlDoc using
loadXMLDoc() and compares the first and the third <book> nodes:
Example
xmlDoc=loadXMLDoc("books.xml");
x=xmlDoc.getElementsByTagName('book')[0];
y=xmlDoc.getElementsByTagName('book')[2];
document.write(x.compareDocumentPosition(y));
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Output:
Try it yourself »
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Firefox, and most other browsers, will treat empty white-spaces or new lines
as text nodes, Internet Explorer will not. So, in the example above, Mozilla
browsers will output 4, while Internet Explorer will output 2. To read more about the differences between browsers, visit our
DOM Browsers chapter in our XML DOM
Tutorial.
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