调用 Firestore 数据库返回未定义

Question

我正在尝试从文档中检索一个数组，但是该文档在异步 .then 函数中返回 undefined

除此之外的所有其他呼叫都在工作。收到的确切错误代码是

无法在 process._tickDomainCallback (internal/process/next_tick.js:229:7) 处读取 /srv/routes/raffles.js:54:37 处未定义的属性“电子邮件”

这是我的相关代码：

  var array = await doc.data().email;

  await array.forEach(async function (value) {
      if (value == email) {
      } else {
          checkedScore++
      }
  });
});```

Doc returns as undefined even though I am not changing anything from my last requests. As you can see from my database, all names and paths are correct. http://prntscr.com/ogly3n

Answer 1

试试这个：

let document = await db.collection("raffles).doc("h5s3a").get();
let array= document.data().email;

        for (let element of array) {
            if (element == email){
              //do something
            }else{
              checkedScore++
            }
        }