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 opened read-only property of the HIDDevice interface returns true if the connection to the HIDDevice is open and ready to transfer data.
A boolean value, true if the connection is open.
The following example retrieves devices with HID.getDevices() and logs the value of opened to the console.
let devices = await navigator.hid.getDevices();
devices.forEach((device) => {
console.log(`HID: ${device.opened}`);
});
| Specification |
|---|
| WebHID API> # dom-hiddevice-opened> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
opened |
89 | 89 | No | 75 | No | No | No | No | No | No | No | No |
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https://developer.mozilla.org/en-US/docs/Web/API/HIDDevice/opened