Document.createAttribute()

The Document.createAttribute() method creates a new attribute node, and returns it. The object created a node implementing the Attr interface. The DOM does not enforce what sort of attributes can be added to a particular element in this manner.

The string given in parameter is converted to lowercase.

Syntax

JavaScript
attribute = document.createAttribute(name)

Parameters

  • name is a string containing the name of the attribute.

Return value

A Attr node.

Exceptions

  • INVALID_CHARACTER_ERR if the parameter contains invalid characters for XML attribute.

Example

JavaScript
var node = document.getElementById("div1");
var a = document.createAttribute("my_attrib");
a.value = "newVal";
node.setAttributeNode(a);
console.log(node.getAttribute("my_attrib")); // "newVal"

Specifications

Specification Status Comment
DOM
The definition of 'Document.createAttribute()' in that specification.		 Living Standard Precised behavior with uppercase characters
Document Object Model (DOM) Level 3 Core Specification
The definition of 'Document.createAttribute()' in that specification.		 Recommendation No change.
Document Object Model (DOM) Level 2 Core Specification
The definition of 'Document.createAttribute()' in that specification.		 Recommendation No change.
Document Object Model (DOM) Level 1 Specification
The definition of 'Document.createAttribute()' in that specification.		 Recommendation Initial definition.

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support 1.0 (1.7 or earlier)[1] (Yes) (Yes) (Yes) (Yes)
Feature Firefox Mobile (Gecko) Android IE Mobile Opera Mobile Safari Mobile
onselectionchange 1.0 (1)[1] (Yes) (Yes) (Yes) (Yes)

[1] Before Firefox 44, the parameter wasn't converted to its lowercase variant.

See also

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/document/createattribute

API DOM Method Reference