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DOM Examples DOM ValidatorXML DOM compareDocumentPosition() Method
Node Object
Definition and Usage
The compareDocumentPosition() method compares the document position of the current node, with a specified node, according to the document order.
Syntax
nodeObject.compareDocumentPostition(node)
| 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 document position of the first and the third <book> element:
Example
xmlDoc=loadXMLDoc("books.xml");
x=xmlDoc.getElementsByTagName('book')[0];
y=xmlDoc.getElementsByTagName('book')[2];
document.write(x.compareDocumentPosition(y));
x=xmlDoc.getElementsByTagName('book')[0];
y=xmlDoc.getElementsByTagName('book')[2];
document.write(x.compareDocumentPosition(y));
Output:
4
Try it yourself »
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.
Node Object
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