ng-if condition using specificities in angularJs

is it possible to use the ng-if condition with a == condition? Like --ng-if='id = 1' ? Here is how i'm using it:

.col-md-3(ng-repeat="user in refs.userList | orderBy : 'department.id'", ng-if="user.department.id")

I want to display only users which are from the departement id number 1. How can i do that?

Thanks,

Nicolas