MIDIMessageEvent: MIDIMessageEvent() constructor

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The MIDIMessageEvent() constructor creates a new MIDIMessageEvent object. Typically this constructor is not used as events are created when a MIDIInput finishes receiving one or more MIDI messages.

Syntax

js
new MIDIMessageEvent(type)
new MIDIMessageEvent(type, options)

Parameters

type

A string with the name of the event. It is case-sensitive and browsers always set it to MIDIMessageEvent.

options Optional

An object that, in addition of the properties defined in Event(), can have the following properties:

data

A Uint8Array instance containing the data bytes of the MIDI message.

Return value

A new MIDIMessageEvent object.

Specifications

Specification
Web MIDI API
# dom-midimessageevent-constructor

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
MIDIMessageEvent() constructor
Chrome – Full support
Chrome 43 (Release date: 2015-05-19)
footnote Full support
Edge – Full support
Edge 79 (Release date: 2020-01-15)
footnote Full support
Firefox – Full support
Firefox 108 (Release date: 2022-12-13)
footnote Full support
Opera – Full support
Opera 30 (Release date: 2015-06-09)
footnote Full support
Safari – No support
Safari
footnote
footnote See bug 107250
Chrome Android – Full support
Chrome Android 43 (Release date: 2015-05-27)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 30 (Release date: 2015-06-10)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote
footnote See bug 107250
Samsung Internet – Full support
Samsung Internet 4 (Release date: 2016-03-11)
footnote Full support
WebView Android – Full support
WebView Android 43 (Release date: 2015-05-27)
footnote Full support
WebView on iOS – No support
WebView on iOS
footnote
footnote See bug 107250

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
See implementation notes.