从 Firebase 获取用户个人资料信息的问题

Question

I am facing a problem in getting the User Profile Information from Firebase.我在从 Firebase 获取用户配置文件信息时遇到问题。

Actually, I created a function which will get the user information from Firebase.实际上，我创建了一个从 Firebase 获取用户信息的函数。 The codes for the same is shown below-相同的代码如下所示 -

function showProfileInformation(){
var user = firebase.auth().currentUser;
if (user != null) {
    user.providerData.forEach(function (profile) {
      var storeTheEmail= profile.email;
      console.log(storeTheEmail);
    });
  }
}

When I call this function from body tag of the HTML as-当我从 HTML 的body 标签调用这个函数时，

<body onload="showProfileInformation()">

Then, the function is called but It is not retrieving the User Information然后，该函数被调用，但它没有检索用户信息

But when I call this Function through a button, as-但是当我通过一个按钮调用这个函数时，作为-

<button onclick="showProfileInformation()">Click Me</button>

Then it works properly.然后它可以正常工作。

What might be the problem?可能是什么问题？

Answer 1

You can solve it by delaying the execution of your function-您可以通过延迟执行您的功能来解决它-

<body id="bodyTag" onload="changeTheStatusWithDelay()">

<script>


// IT IS THE FUNCTION WHICH WILL BE CALLED FROM BODY TAG

function changeTheStatusWithDelay(){


// IT WILL DELAY YOUR EXECUTION OF THE FUNCTION
setTimeout(changeItNow, 2000);

}

//NOW YOU CAN PASTE ALL OF YOUR CODE HERE

function changeItNow(){

var database = firebase.database();
var user = firebase.auth().currentUser;

if (user != null) {




user.providerData.forEach(function (profile) {
var storeTheEmail= profile.email;
console.log(storeTheEmail);



});
}
}

</script>

从 Firebase 获取用户个人资料信息的问题

问题描述

1 个解决方案

解决方案1
1 已采纳 2019-03-03 14:08:05

从 Firebase 获取用户个人资料信息的问题

问题描述

1 个解决方案

解决方案1 1 已采纳 2019-03-03 14:08:05

解决方案1
1 已采纳 2019-03-03 14:08:05