HIDConnectionEvent

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 HIDConnectionEvent interface of the WebHID API represents HID connection events, and is the event type passed to connect and disconnect event handlers when a device's connection state changes.

Event HIDConnectionEvent

Constructor

HIDConnectionEvent() Experimental

Returns a new HIDConnectionEvent object. Typically this constructor is not used as events are created when a device's connection state changes.

Instance properties

This interface also inherits properties from Event.

HIDConnectionEvent.device Read only Experimental

Returns the HIDDevice instance representing the device associated with the connection event.

Examples

The following example registers event listeners for connect and disconnect events, then prints the HIDDevice.productName to the console.

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

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

Specifications

Specification
WebHID API
# dom-hidconnectionevent

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
HIDConnectionEvent
Experimental
HIDConnectionEvent() constructor
Experimental
device
Experimental
Available in workers
Experimental

Legend

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Full support
Full support
Partial support
Partial support
No support
No support
Experimental. Expect behavior to change in the future.
See implementation notes.
Has more compatibility info.