HIDDevice: opened 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.
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.
Value
A boolean value, true if the connection is open.
Examples
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}`);
});
Specifications
| Specification |
|---|
| WebHID API # dom-hiddevice-opened |
Browser compatibility
| desktop | mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
opened
|
|
|
|
|
|
|
|
|
|
|
|
|
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.