Document.createComment()

createComment() creates a new comment node, and returns it.

Syntax

CommentNode = document.createComment(data);

Parameters

data: A string containing the data to be added to the Comment.

Example

var docu = new DOMParser().parseFromString('<xml></xml>',  'application/xml');
var comment = docu.createComment('This is a not-so-secret comment in your document');

docu.getElementsByTagName('xml')[0].appendChild(comment);

alert(new XMLSerializer().serializeToString(docu));
// Displays: <xml><!--This is a not-so-secret comment in your document--></xml>

Specifications

Specification
DOM Standard (DOM) # ref-for-dom-document-createcomment①

Browser compatibility

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