MIDIMessageEvent: data property

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 data read-only property of the MIDIMessageEvent interface returns the MIDI data bytes of a single MIDI message.

Value

Examples

In the following example midimessage events are listened for on all input ports. When a message is received the value of data is printed to the console.

js
inputs.forEach((input) => {
  input.onmidimessage = (message) => {
    console.log(message.data);
  };
});

Specifications

Specification
Web MIDI API
# dom-midimessageevent-data

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
data

Legend

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

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