我试图扭转火力地堡的列表的顺序对象如何扭转一个火力点列表与JavaScript
我“的insertBefore”试过了,“insertAdjacentHTML”,“反向()”,但我没有预期的结果(无序或白屏)...
你有什么想法吗?
谢谢!
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Classement TOP 10</title>
<script src="https://www.gstatic.com/firebasejs/4.2.0/firebase.js"></script>
<script>
(function(){
// Initialize Firebase
var config = {
databaseURL: "https://XXXXXXXX.firebaseio.com"
};
firebase.initializeApp(config);
var userDataRef = firebase.database().ref("users").orderByChild('points').limitToLast(10);
userDataRef.once("value")
.then(function(snapshot) {
snapshot.forEach(function(childSnapshot) {
var firstName_val = childSnapshot.val().firstName;
// console.log(firstName_val);
var lastName_val = childSnapshot.val().lastName.substr(0,1);
// console.log(lastName_val);
var points_val = childSnapshot.val().points;
// console.log(points_val);
var x = document.createElement("li");
var t = document.createTextNode(firstName_val + " " + lastName_val + ". - " + points_val + " points");
x.appendChild(t);
document.getElementById("classement").appendChild(x);
});
});
}());
</script>
</head>
<body>
<div>
<ol id="classement"></ol>
</div>
</body>
</html>
'我试着用 “的insertBefore”, “insertAdjacentHTML”'在哪里?显示它,我们可以告诉你你是如何做错的 –