web api instance method
Element: setAttributeNode() method
The setAttributeNode() method of the Element interface adds a new Attr node to the specified element.
If you don’t need to work with the attribute node (such as cloning from another element) before adding it, you can use the setAttribute() method instead.
Syntax
setAttributeNode(attribute)
Parameters
attribute- : The
Attrnode to add to the element.
- : The
Return value
The replaced attribute node, if any, returned by this function.
Examples
This example copies the lang attribute from one element to another.
HTML
<div id="one" lang="en-US">one</div>
<div id="two">two</div>
JavaScript
const d1 = document.getElementById("one");
const d2 = document.getElementById("two");
const a = d1.getAttributeNode("lang");
d2.setAttributeNode(a.cloneNode(true));
// Returns: 'en-US'
console.log(d2.attributes[1].value);
Notes
If the attribute named already exists on the element, that attribute is replaced with the new one and the replaced one is returned.
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.