XML DOM isId Property

Complete Attr Object Reference

Definition and Usage

The isId property returns true if an attribute is known to be of type ID (e.g. contains an identifier for its owner element), otherwise it returns false.

Syntax

attrObject.isId

Example

The following code fragment loads "books.xml" into xmlDoc using loadXMLDoc() and returns whether the category attribute is an ID attribute of the <book> element:

xmlDoc=loadXMLDoc("books.xml");

x=xmlDoc.getElementsByTagName('book');

for(i=0;i<x.length;i++)
{
document.write(x.item(i).attributes[0].isId);
document.write("<br />");
}

The output of the code above will be:

false

Try-It-Yourself Demos

isId - Get whether an attribue is to be of type ID

Complete Attr Object Reference

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