如何在Firebase中处理包含服务器时间戳的对象的读取和写入？

var database = firebase.database();
var ref = database.ref("your-collection");

var object = {
  name: "example",
  timestamp: firebase.database.ServerValue.TIMESTAMP
};

ref.push(object);

var database = firebase.database();
var ref = database.ref("your-collection");

var startTimestamp = /* 起始时间戳 */;
var endTimestamp = /* 结束时间戳 */;

ref.orderByChild("timestamp").startAt(startTimestamp).endAt(endTimestamp).once("value", function(snapshot) {
  snapshot.forEach(function(childSnapshot) {
    var object = childSnapshot.val();
    // 处理获取到的对象
  });
});