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setAttributeNode method

Browser support:

Adds the specified attribute node to the current element.

If an attribute with the same name exists on the current element, then this method removes it and returns the removed attribute node.

The name is case-sensitive in XML documents and case-insensitive in HTML documents.

If you want to set a value for an HTML attribute, use the name of the HTML attribute instead of the corresponding JavaScript property name in Internet Explorer (unlike in the case of the setAttribute method)!

To set a value of an attribute, you do not need to work with attribute nodes; the use of the setAttribute method is simpler.

Syntax:

object.setAttributeNode (attributeNode);

You can find the related objects in the Supported by objects section below.

Parameters:

attributeNode

Required. Reference to an attribute node to add.

Return value:

Returns the removed attribute node or null if no attribute was removed.

Methods for attributes without namespaces:

createAttribute

Creates a new attribute node with the specified name.

getAttribute

Returns the value of the attribute with the specified name from the current element.

getAttributeNode

Returns the attribute node with the specified name from the current element.

getNamedItem

Returns the attribute node with the specified name from the current attributes collection.

hasAttribute

8

Returns whether the current element has an attribute with the specified name or not.

removeAttribute

Removes the attribute with the specified name from the current element.

removeAttributeNode

Removes the specified attribute node from the current element.

removeNamedItem

Removes the attribute with the specified name from the current attributes collection and returns the removed attribute node.

setAttribute

Adds an attribute with the specified name and value to the current element.

setAttributeNode

Adds the specified attribute node to the current element.

setNamedItem

Adds the specified attribute node to the current attributes collection.

Example HTML code 1:

This example illustrates the use of the setAttributeNode method:

<head>
    <style>
        .sample {color:red;}
    </style>
    <script type="text/javascript">
        function SetClass () {
            var div = document.getElementById ("myDiv");
            var attr = document.createAttribute ("class");
            attr.value = "sample";
            div.setAttributeNode (attr);
        }
    </script>
</head>
<body>
    <div id="myDiv">
        Some text inside the division element.
    </div>
    <br />
    <button onclick="SetClass ()">Set a style class for the division element!</button>
</body>