客户端上的空对象。如何正确传递承诺值？

Question

我遇到了对象的问题，它包含承诺值并在Cilent端访问它们。我想访问值，但我收到的只是空的对象。

这里是服务器端的代码：

router.get('/toExcess', function(req, res){ 
    console.log(req.query); 
    const response = logic.adder(req.query.a, req.query.b); 
    const convertToModular = logic.modularRecordExcess(response); 
    const convertToOpposite = logic.oppositeRecordExcess(response); 
    const convertToObjective = logic.objectiveRecordExcess(response); 
    convertToObjective.then(function (response) { 
    var add = { 
    modular: convertToModular, 
    opposite: convertToOpposite, 
    objective: convertToObjective, 
} 
console.log(add); 
res.send(add); 
}).catch(function(err){ 

}); 
}); 

，它是在服务器端控制台日志：

{ modular: Promise { [ '1.', '0111', '.', '1001', '0011' ] }, 
    opposite: Promise { [ '1.', '1000', '.', '0110', '1100' ] }, 
    objective: Promise { [ '1.', '1000', '.', '0110', '1101' ] } } 

和这里的反应函数：

showExcess(){ 
    document.querySelector('.input-wrapper').style.display = 'inline'; 
    RestClient.getExcess(this.state.augend, this.state.addend).then((response) 
    => {  
this.setState({ 
     isReady: true 
    }); 
     console.log(response); 
    }); 
} 

和浏览器中的CONSOL.log结果： enter image description here

对象为空。 有什么建议吗？我需要获得模块化，客观和相反的价值观。

Answer 1

router.get('/toExcess', function(req, res){ 
    console.log(req.query); 
    const response = logic.adder(req.query.a, req.query.b); 
    const convertToModular = logic.modularRecordExcess(response); 
    const convertToOpposite = logic.oppositeRecordExcess(response); 
    const convertToObjective = logic.objectiveRecordExcess(response); 
    Promise.all([convertToModular, convertToOpposite, convertToObjective]) 
    .then(function (response) { 
    var add = { 
     modular: response[0], 
     opposite: response[1], 
     objective: response[2], 
    } 
    console.log(add); 
    res.send(add); 
    //or you can pass res.json(response); 
    }) 
.catch(function(err){ 

}); 
});