Comment

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.

See full compatibility

The Comment interface represents textual notations within markup; although it is generally not visually shown, such comments are available to be read in the source view.

Comments are represented in HTML and XML as content between . In XML, like inside SVG or MathML markup, the character sequence -- cannot be used within a comment.

Instance properties

This interface has no specific property, but inherits those of its parent, CharacterData, and indirectly those of Node.

Constructor

Comment(): Returns a new Comment object with the parameter as its textual content. If not present, its default value is the empty string, ''.

Instance methods

This interface has no specific method, but inherits those of its parent, CharacterData, and indirectly those of Node.

Specifications

Specification
DOM # interface-comment

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`Comment`	Chrome – Full support Chrome 1 (Release date: 2008-12-11) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 1 (Release date: 2004-11-09) footnote Full support	Opera – Full support Opera 12.1 (Release date: 2012-11-20) footnote Full support	Safari – Full support Safari 3 (Release date: 2007-10-26) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – Full support Opera Android 12.1 (Release date: 2012-10-09) footnote Full support	Safari on iOS – Full support Safari on iOS 1 (Release date: 2007-06-29) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 1 (Release date: 2007-06-29) footnote Full support
`Comment()` constructor	Chrome – Full support Chrome 29 (Release date: 2013-08-20) footnote Full support	Edge – Full support Edge 16 (Release date: 2017-10-17) footnote Full support	Firefox – Full support Firefox 24 (Release date: 2013-09-17) footnote Full support	Opera – Full support Opera 16 (Release date: 2013-08-27) footnote Full support	Safari – Full support Safari 8 (Release date: 2014-10-16) footnote Full support	Chrome Android – Full support Chrome Android 29 (Release date: 2013-08-21) footnote Full support	Firefox for Android – Full support Firefox for Android 24 (Release date: 2013-09-17) footnote Full support	Opera Android – Full support Opera Android 16 (Release date: 2013-09-18) footnote Full support	Safari on iOS – Full support Safari on iOS 8 (Release date: 2014-09-17) footnote Full support	Samsung Internet – Full support Samsung Internet 2 (Release date: 2014-10-17) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 8 (Release date: 2014-09-17) footnote Full support

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Full support: Full support