Fetch media devices

fetch-devices.js

navigator.mediaDevices.getUserMedia({ audio: true, video: true })
  .then(stream => {
    // Close all tracks after getting permission
    stream.getTracks().forEach(track => track.stop());

    // Now enumerate devices
    return navigator.mediaDevices.enumerateDevices();
  })
  .then(devices => {
    devices.forEach(device => {
      console.log(`${device.kind}: ${device.label} (id: ${device.deviceId})`);
    });
  })
  .catch(error => {
    console.error('Error:', error);
  });