on(event, container, callback);
Sets up an event listener to fire whenever the animation event (enter, leave, move, etc...) has fired on the given element or among any of its children. Once the listener is fired, the provided callback is fired with the following params: $animate.on('enter', container,
   function callback(element, phase) {
     // cool we detected an enter animation within the container
   }
);
 
Parameters
Param Type Details  event   string   the animation event that will be