MediaRecorder: pause event

addEventListener('pause', event => { });

onpause = event => { };

...

  pause.onclick = function() {
    if(mediaRecorder.state === "recording") {
      mediaRecorder.pause();
      // recording paused
    } else if(mediaRecorder.state === "paused") {
      mediaRecorder.resume();
      // resume recording
    }
  }

  mediaRecorder.onpause = function() {
    // do something in response to
    // recording being paused
  }

  mediaRecorder.onresume = function() {
    // do something in response to
    // recording being resumed
  }

...