You are probably wondering what I mean by brothers components, well it's simply 2 different components that have the same parent component.

I am using angular.js 5.11

Let's say I have a parent component with a child1 component and a child2 component. I have a variable vm.active in my child1 component and I wish to use it (in an ng-if if you're wondering) in my child2 view. 

Any ideas ? Was thinking of doing two way binding in both 3 components ? What do you all think ? Or maybe considering they are from the same state, probably as a stateParams ? Please let me know if you have any questions