function return boolean

i wish that a function can return an boolean. But i get only " { } ". This function is in a file in the forlder "lib". Thanks :) code:

function searchDb(titleSearch){
    var result =  false;
    var db = Ti.Database.open('db_application');
    var requeteRS = db.execute('SELECT id, title FROM news WHERE title ="'+titleSearch+'"');
    while (requeteRS.isValidRow()) {
        result = true;
        requeteRS.next();
    }
    requeteRS.close();
    db.close();
    return result;
};
exports.searchDb = searchDb;