isId property (attribute)
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Returns whether the current attribute node is an id attribute or not.
Note: The isId property is supported in Safari from version 5.
The isId property does not work in XML documents, only in HTML documents. For a cross-browser solution, use the value of the name property instead.Syntax:
You can find the related objects in the Supported by objects section below.
This property is read-only.
Possible values:
Boolean that indicates whether the current name is an id attribute or not.
One of the following values:
| The attribute is not an id attribute. | |||||||
| The attribute is an id attribute. |
Default: this property has no default value.
Example HTML code 1:
This example illustrates the use of the isId property:
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<head> <script type="text/javascript"> function GetId () { var div = document.getElementById ("myDiv"); for (var i=0; i < div.attributes.length; i++) { var attrNode = div.attributes[i]; if ('isId' in attrNode) { if (attrNode.isId) { alert ("The value of the id attribute: " + attrNode.value); break; } } else { var attrName = attrNode.name.toLowerCase (); if (attrName == "id") { alert ("The value of the id attribute: " + attrNode.value); break; } } } } </script> </head> <body> <button onclick="GetId ();">Get the value of the division element's id attribute!</button> <div id="myDiv"> Division with id="div" </div> </body> |
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Supported by objects:
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