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Showing content from https://webplatform.github.io/docs/dom/NamedNodeMap/removeNamedItem below:

removeNamedItem · WebPlatform Docs

removeNamedItem Summary

Removes an attribute with a given name.

Method of dom/NamedNodeMap dom/NamedNodeMap

Syntax

var attribute = attributes.removeNamedItem();

Parameters name

Data-type: String

The name of an attribute to remove.

Return Value

Returns an object of type DOM NodeDOM Node

The removed attribute.

Examples

The following example shows how to use this method to remove an attribute from an element.

<!doctype html>
<html>
 <head>
<title>removeNamedItem example</title>
  <script>
function removeAttrib() {
    var attributes = document.getElementById("ex").attributes;
    attributes.removeNamedItem("title");
}
  </script>
 </head>
 <body>
 
 <div onclick="removeAttrib();" id="ex" title="This is a tooltip">
Click this DIV and the tooltip will be deactivated.</div>
 </body>
</html>

View live example

Notes

An attribute that is removed with this method reverts to the default value of the attribute when applicable. This method returns a script error if the user attempts to remove a non-existent attribute node. removeNamedItem was introduced in Microsoft Internet Explorer 6.

Related specifications

DOM Level 3 Core: Recommendation

Attributions

Mozilla Developer Network : [NamedNodeMap Article]
Microsoft Developer Network: [Windows Internet Explorer API reference Article]

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