Node.js 函数结果外部循环的节点js

我在for循环中使用一个函数。我无法导出函数的结果

我想将结果导出到数据数组。我怎么做

function opPerformance(callback) {
    var data = [];
    dbConn.connect(function(err) {
        var request = new sql.Request(dbConn);
        request.query('select * from Kullanici ORDER BY Kullanici_Adi ASC ').then(function(recordset) {
            var results = [];
            for (var i in recordset.recordset) {
                data[i] = {
                    kullanici_adi:recordset.recordset[i].Kullanici_Adi,
                    performance:'0'
                };

                opPerformanceData(recordset.recordset[i].Kullanici_Adi, function ( result ){
                    data[i]['performance'] = result; // This is not working, I can not get the end out.
                    console.log(result); // This works.
                });
            }
            callback(data);
        });
    });
};

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您传递的回调函数opPerformanceData中可能存在重复，该回调函数将异步执行，因此，当您调用回调（data）时，数据将为空