am-event-emmiter (npm): Custom Event emitter for JavaScript. You can be able to register and  Unregister, mute & Unmute event written in core JavaScript no external lib required 
Keywords: Java Script Event Emmiter|Custom Event Emmiter in Java Script|Mute and Unmute Event|Multi register event emmiter|event|events|trigger|observer|listener|emitter|pubsub|async|callbacks|custom-events-emitter|event-emitter|java-script-event-emmiter|javascript-library|multi-register-event-emmiter|mute-unmute