Javascript 在AngularJS和Bootstrap中的搜索框中生成结果

我希望在导航栏中显示结果

HTML

这是我在控制台中得到的错误

$scope.institutions = function(institution) {
    return{ $institutions, {
        query: institutions
    }
        .then(function(response) {
            return limitToFilter(response.data, 15);
        });
}
};

$scope.institutions = function(institution) {
    return $institutions, {
        query: institutions
    }
        .then(function(response) {
            return limitToFilter(response.data, 15);
        });
};

$scope.institutions = function(institution) {
    return{ $institutions, {
        query: institutions
    }
        .then(function(response) {
            return limitToFilter(response.data, 15);
        });
}
};