如何使用$ scope方法在AngularJS控制器中调用函数？

Question

I have a function inside my controller that I want to be able to call from a $scope method so I can reuse my code only within the controller. I use the function to clear some input fields. I would like to call after a user is inserted as well as I would like to assign it to the a "Clear" button click. Calling the function after inserting works just fine but assigning the function to the method isn't.

If I assign the function directly to the $scope.clearUser method it works but then I can't call it after inserting a user.

function clearUser() {
    $scope.EmployeeNumber = '';
    $scope.isAdmin = false;
};

$scope.clearUser = clearUser();    
//also tried $scope.clearUser = this.clearUser();

//$scope.clearUser = function() {
//    $scope.EmployeeNumber = '';
//    $scope.isAdmin = false;
//};

<button ng-click="clearUser()" class="btn btn-default">
    <i class="fa fa-times"></i> Clear
</button>

Answer 1

Omit the () to pass the function:

$scope.clearUser = clearUser;

Or, create it all at once:

var clearUser = $scope.clearUser = function() {

}

Answer 2

try to change,

$scope.clearUser = clearUser();

to

$scope.clearUser = clearUser;