Limited availability
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.
ExamplesThe following example retrieves devices with HID.getDevices() and logs the value of opened to the console.
document.addEventListener("DOMContentLoaded", async () => {
let devices = await navigator.hid.getDevices();
devices.forEach((device) => {
console.log(`HID: ${device.opened}`);
});
});
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