Node: nodeValue property
The nodeValue
property of the Node
interface returns or sets the value of the current node.
Value
A string containing the value of the current node, if any.
For the document itself, nodeValue
returns null
.
For text, comment, and CDATA nodes, nodeValue
returns the content of the node.
For attribute nodes, the value of the attribute is returned.
The following table shows the return values for different types of nodes.
Node | Value of nodeValue |
---|---|
CDATASection |
Content of the CDATA section |
Comment |
Content of the comment |
Document |
null |
DocumentFragment |
null |
DocumentType |
null |
Element |
null |
NamedNodeMap |
null |
ProcessingInstruction |
Entire content excluding the target |
Text |
Content of the text node |
Note: When nodeValue
is defined to be null
, setting it has no effect.
Example
html
<div id="d1">Hello world</div>
<!-- Example of comment -->
<output id="result">Not calculated yet.</output>
and the following script:
js
let node = document.querySelector("body").firstChild;
let result = "<br/>Node names are:<br/>";
while (node) {
result += `Value of ${node.nodeName}: ${node.nodeValue}<br/>`;
node = node.nextSibling;
}
const output = document.getElementById("result");
output.innerHTML = result;
Specifications
Specification |
---|
DOM Standard # dom-node-nodevalue |
Browser compatibility
BCD tables only load in the browser