HID: disconnect event

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.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Note: This feature is available in Web Workers, except for Shared Web Workers.

The disconnect event of the HID interface fires when the user agent disconnects a HID device.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

js
addEventListener("disconnect", (event) => {});

ondisconnect = (event) => {};

Event type

A HIDConnectionEvent. Inherits from Event.

Event HIDConnectionEvent

Event properties

In addition to the properties listed below, properties from the parent interface, Event, are available.

device Read only

The HIDDevice the event is fired for.

Examples

In the following example an event listener is registered to listen for the disconnection of a device. The name of the device is then printed to the console using HIDDevice.productName.

js
navigator.hid.addEventListener("disconnect", ({ device }) => {
  console.log(`HID disconnected: ${device.productName}`);
});

Specifications

Specification
WebHID API
# dom-hid-ondisconnect

Browser compatibility

BCD tables only load in the browser