firebase.database.ref 不是函数错误 [英] firebase.database.ref is not a function error

问题描述

我正在尝试从我的数据库读取/写入数据，但我总是收到此错误:

I am trying to read/write data from my database, but I always get this error:

firebase.database.ref 不是函数错误

firebase.database.ref is not a function error

以下是我将 firebase 包含到项目中的方式:

Here is how I have included firebase into a project:

<script src="https://www.gstatic.com/firebasejs/5.9.3/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/5.9.3/firebase-auth.js"></script>
<script src="https://www.gstatic.com/firebasejs/5.9.3/firebase-database.js"></script>

然后:

<script>
var config = {
    ...
};

firebase.initializeApp(config);
</script>

Firebase 身份验证正常工作.但是当我这样做时:

The Firebase Auth works correctly. But when I do this:

function insertUser(user,name) {


     var ref = firebase.database.ref();

        ref.collection("users").doc(user.uid).set({
         uid: user.uid,
         email: user.email,
         name: name

         })
    .then(function() {
      console.log("Document successfully written!");
    })
    .catch(function(error) {
        console.error("Error writing document: ", error);
    });

}

我得到上面的错误.我做错了什么?

I get error above. What am I doing wrong?

推荐答案

database() 是一种方法，因此将其更改为以下内容:

database() is a method so change it to the following:

 var reference =  firebase.database().ref();

最好不要有相同的变量和方法名称.

Also better not to have same variable and method name.

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