如何将这些值添加到数组中? [英] How can i add these values to array?

问题描述

我在添加这些数组时遇到了问题

I am having trouble while adding these array

637301291068030997 => { guildMemberCount: 4,
guildOwnerID: '348832732647784460',
guildOwner: 'Ethical Hacker',
prefix: '.',
guildID: '637301291068030997',
guildName: 'test server 3',
welcomeChannelID: '-' },
(some number) => {other array}

在上面的数组中，我在 doc.id 变量中接收到 637301291068030997 数字，其余的正在进入 doc.data()

in the above array i am receiving 637301291068030997 number in doc.id variable and rest is getting in doc.data()

我的代码是这样的

var temp = {}
temp.guilds = []                                 // after some lines 
snapshot.forEach(doc => {
        console.log(doc.id, '=>',doc.data());    // output is above array shown 
        temp.guilds.push(doc.id = doc.data())    // output of this line is given below this code
    })

这里是 temp.guilds.push 的输出，缺少的值是 doc.id 或 637301291068030997

here is output of temp.guilds.push the missing value is doc.id or 637301291068030997

{ guilds:
   [ { guildID: '637301291068030997',
       guildName: 'test server 3',
       welcomeChannelID: '-',
       guildMemberCount: 4,
       guildOwnerID: '348832732647784460',
       guildOwner: 'Ethical Hacker',
       prefix: '.' },
     {}   // this missing thing before {} is (some number) also bracket is empty by the way so no worries 
  ] 
}

我该怎么做才能在变量中得到如下输出

what can i do so that i will get the output like below in a variable

  {
    "637301291068030997": [
      {
        "guildMemberCount": 4,
        "guildOwnerID": "348832732647784460",
        "guildOwner": "Ethical Hacker",
        "prefix": ".",
        "guildID": "637301291068030997",
        "guildName": "test server 3",
        "welcomeChannelID": "-"
      }
    ]
  }

将临时文件保存到文件的问题

Issue in saving to the temp to the file file

await fs.writeFileSync ("./data/json/serversettings.json", JSON.stringify(temp), function(err) {
        if (err) throw err;
        console.log('done');
        })

省了这么多

{"guilds":[]}

没有在里面保存任何东西，但是 console.log(temp) 给出了正确的输出

not saving anything inside it but console.log(temp) is giving correct output

推荐答案

使用 doc.id = doc.data() 你是 分配 数据到 id 属性.那不可能是你想要的.

With doc.id = doc.data() you are assigning the data to the id property. That cannot be what you want.

我建议根本不创建数组，而是创建一个普通(嵌套)对象.

I would suggest to not create an array at all, but a plain (nested) object.

像这样:

// ...
temp.guilds = {} // plain object, not array
snapshot.forEach(doc => {
    temp.guilds[doc.id] = doc.data();
})

如果 snapshot.forEach 实现以异步方式进行回调，那么请确保等到所有回调都完成后再依赖 temp.guilds 的内容.承诺可以减轻这项任务.

If the snapshot.forEach implementation makes the call backs asynchronously, then make sure to wait until all call backs have been made before relying on the contents of temp.guilds. Promises can ease that task.

// ...
let promise = new Promise(function(resolve) {
    let guilds = {} // plain object, not array
    let remaining = snapshot.size; // If firebase, there is this property
    snapshot.forEach(doc => {
        guilds[doc.id] = doc.data();
        remaining--;
        if (!remaining) resolve(guilds);
    });
});
promise.then(function (guilds) {
    // do anything you like with guilds inside this function...
    let temp = { guilds };
    // ...
});

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