Element.setAttributeNode()
The setAttributeNode()
method adds a new
Attr
node to the specified element.
Syntax
var replacedAttr = element.setAttributeNode(attribute);
attribute
is theAttr
node to set on the element.-
replacedAttr
is the replaced attribute node, if any, returned by this function.
Example
This example copies the align
attribute from one element to another.
HTML
<div id="one" align="left">one</div>
<div id="two">two</div>
JavaScript
let d1 = document.getElementById('one');
let d2 = document.getElementById('two');
let a = d1.getAttributeNode('align');
d2.setAttributeNode(a.cloneNode(true));
// Returns: 'left'
alert(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.
This method is seldom used, with Element.setAttribute()
usually being
used to change element's attributes.
DOM methods dealing with element's attributes:
Not namespace-aware, most commonly used methods | Namespace-aware variants (DOM Level 2) | DOM Level 1 methods for dealing with Attr nodes directly (seldom used) |
DOM Level 2 namespace-aware methods for dealing with Attr nodes directly (seldom used) |
---|---|---|---|
setAttribute (DOM 1) |
setAttributeNS |
setAttributeNode |
setAttributeNodeNS |
getAttribute (DOM 1) |
getAttributeNS |
getAttributeNode |
getAttributeNodeNS |
hasAttribute (DOM 2) |
hasAttributeNS |
- | - |
removeAttribute (DOM 1) |
removeAttributeNS |
removeAttributeNode |
- |
Specifications
Specification |
---|
DOM Standard # dom-element-setattributenode |
Browser compatibility
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