angular.js - How to listen to more than two events at the same time in angularjs?

Question

Business scenario description:

Assume that in the child controller, the user's various click operations will be divided into two events, which will be broadcast to the parent controller by the controller

$scope.$emit('ngUserLogin');
$scope.$emit('ngUserUpdate');

In the parent controller, we use $on to listen to these two events, yes,

$scope.$on('ngUserlogin', function(){"}
$scope.$on('ngUserUpload', function(){"}

But in a certain scene, I found that these two events executed the same logic, so I wanted to write it like this:

$scope.$on(['ngUserlogin','ngUserUpload'], function(){"}

This is the mode I expected, but ng obviously cannot be written like this. I would like to ask you how to monitor more than two events at the same time in your actual business

Answer 1

It’s a pity that ng does not have the mode you expected. To make a little trick, you can write like this:

angular.forEach(['ngUserlogin','ngUserUpload'], function(value){
    $scope.$on(value, function(event){
        console.log(event.name);//执行你想要的吧
    });
});

Answer 2

You can change your thinking, you only send one event, and then bring different parameters when sending this event$emit(name, args);; when you listen to this event, judge the parameters, and you will know what you want to do next.