AngularJS $broadcast with multiple parameters

Question

Can I have a $broadcast $on with multiple parameters, something like:

$scope.$broadcast('event',$scope.item, $scope.item);

Is it possible to have something like this or something similar in any case ?

Answer 1

Just put the parameters into an object:

$scope.$broadcast('event', { a: item1, b: item2 })

Then access them from the second argument to the callback:

$scope.$on('event', function(event, opt) {
 // access opt.a, opt.b
});

Or if using ES2015 syntax you can unpack the arguments:

$scope.$on('event', (event, {a,b}) => {
 // access them just as a, b
});

Answer 2

Documentation says:

'Optional one or more arguments which will be passed onto the event listeners'

$rootScope.$emit(event_name, p1, p2, p3);

Answer 3

$scope.$broadcast('broadcast-my-event', anyVariable);
anyVariable = {key1: value1, key2: value2};
// or
anyVariable = [value1, value2, value3];