Events in the Angularjs

$scope. $emit (' eventName ', parameter)   // sub-scopes send events to the parent scope to cancel the $scope. $broadcast (/ / Parent scope sends an event to a child scope and cannot cancel the $scope. $on (' eventName ',function// event Listener, Evt.stoppropagation () cancels the delivery of the $emit () event, Evt.preventdefault () sets the defaultprevented=true to determine if the event needs to continue processing $ Exceptionhandler  // handling exceptions for listeners

Events in the Angularjs