The isSameNode()
method for Node
objects tests whether two nodes are the same (that is, whether they reference the same object).
Syntax
const isSameNode = node.isSameNode(otherNode)
Parameters
otherNode
TheNode
to test against.
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 isSameNode()
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 same as div 0: " + divList[0].isSameNode(divList[0]) + "<br/>"; output.innerHTML += "div 0 same as div 1: " + divList[0].isSameNode(divList[1]) + "<br/>"; output.innerHTML += "div 0 same as div 2: " + divList[0].isSameNode(divList[2]) + "<br/>";
Results
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Node: isSameNode' in that specification. |
Living Standard | No change (was for a long time removed from it). |
Document Object Model (DOM) Level 3 Core Specification The definition of 'Node.isSameNode()' in that specification. |
Obsolete | Initial definition |
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
isSameNode | Chrome Full support Yes | Edge Full support 12 | Firefox
Full support
48
| IE ? | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android
Full support
48
| Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown