ｃ７ - 経済統計練習帳

<!DOCTYPE html>
<html lang="ja">
  <head>
    <meta charset="utf-8" />
    <title>Firebase</title>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-alpha1/jquery.min.js"></script>
    <script src="https://cdn.firebase.com/js/client/2.3.2/firebase.js"></script>
       <script src="sample.js"></script>
 
 
  </head>
  <body onload="sample()">
    <div>
    <ul id="mx">
    </ul>
  </body>
</html>
 
 
 
function sample() {
 
    var str = "";
 
    var firebaseRef = new Firebase("https://my-first-chat-app.firebaseio.com");
    var messagesRef = firebaseRef.child('messages');
 
    messagesRef.on('child_added', function (snapshot) {
        var x = snapshot.val();
        str = str + x.name;
        $("#mx").html(str);
    });