Document: createCDATASection() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
createCDATASection() creates a new CDATA section node,and returns it.
Syntax
js
createCDATASection(data)Parameters
dataA string containing the data to be added to the CDATA Section.
Return value
ACDATA Section node.
Examples
js
const doc = new DOMParser().parseFromString("<xml></xml>", "application/xml");const cdata = doc.createCDATASection("Some <CDATA> data & then some");doc.querySelector("xml").appendChild(cdata);console.log(new XMLSerializer().serializeToString(doc));// Displays: <xml><![CDATA[Some <CDATA> data & then some]]></xml>Notes
- This will only work with XML, not HTML documents (as HTML documents do not supportCDATA sections); attempting it on an HTML document will throw
NOT_SUPPORTED_ERR. - Will throw a
NS_ERROR_DOM_INVALID_CHARACTER_ERRexception if one triesto submit the closing CDATA sequence (]]>) as part of the data, sounescaped user-provided data cannot be safely used without this method getting thisexception (createTextNode()can often be usedin its place).
Specifications
| Specification |
|---|
| DOM # ref-for-dom-document-createcomment① |