Is there any event in JavaScript, I can listen to in browser, through which we can know whether headphones are inserted or removed?
I assume if we are able to iterat
I am using phone-gap plugin for the same
HTML:
<button class="button button-stable" ng-click="checkHeadphone()">
JS:
$scope.checkHeadphone = function () {
        window.plugins.headsetdetection.detect(function (detected) {
            alert("Headphone " + detected)
        })
    }
You can use the following: https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices
example:
navigator.mediaDevices.addEventListener('devicechange', () => {
  // Do whatever you need to with the devices
  // Maybe use enumerateDevices() to see what connected
});
You could check the devices already connected from the following or call it on devicechange:
navigator.mediaDevices.enumerateDevices()
  .then(devices => {
    // Check the connected devices
    console.log(devices);  
  });