问如何在JavaScript中检测耳机是否插入或拔出？

EN

navigator.mediaDevices.addEventListener('devicechange', () => {
  // Do whatever you need to with the devices
  // Maybe use enumerateDevices() to see what connected
});

navigator.mediaDevices.enumerateDevices()
  .then(devices => {
    // Check the connected devices
    console.log(devices);  
  });