The Node.isEqualNode()
method tests whether two nodes are equal. Two nodes are equal when they have the same type, defining characteristics (for elements, this would be their ID, number of children, and so forth), its attributes match, and so on. The specific set of data points that must match varies depending on the types of the nodes.
Syntax
var isEqualNode = node.isEqualNode(otherNode);
otherNode
: TheNode
to compare equality with.
Example
In this example, we create three <div>
blocks. The first and third have the same contents and attributes, while the second is different. Then we run some JavaScript to compare the nodes using isEqualNode()
and output the results.
HTML
<div>This is the first element.</div> <div>This is the second element.</div> <div>This is the first element.</div> <p id="output"></p>
CSS
#output { width: 440px; border: 2px solid black; border-radius: 5px; padding: 10px; margin-top: 20px; display: block; }
JavaScript
let output = document.getElementById("output"); let divList = document.getElementsByTagName("div"); output.innerHTML += "div 0 equals div 0: " + divList[0].isEqualNode(divList[0]) + "<br/>"; output.innerHTML += "div 0 equals div 1: " + divList[0].isEqualNode(divList[1]) + "<br/>"; output.innerHTML += "div 0 equals div 2: " + divList[0].isEqualNode(divList[2]) + "<br/>";
Results
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Node.isEqualNode' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
isEqualNode | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 2 | IE Full support 9 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support