客户端上的空对象。如何正确传递承诺值?
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。客户端上的空对象。如何正确传递承诺值?
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。
回答:
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){
});
});
以上是 客户端上的空对象。如何正确传递承诺值? 的全部内容, 来源链接: utcz.com/qa/261994.html