在我的客户端应用程序上，我正在使用Socket IO检查未读事件。我向后端提出了一个请求，该请求将超时设置为5秒，然后继续检查未读事件并将其发送回去。

// client
socket.on("response",({ mostRecentMessages }) => {
    // do some stuff first
    socket.emit("listenForNew",{ userId,currentMessagesFromEveryone });
})

// backend
  socket.on("listenForNew",({ userId,currentMessagesFromEveryone }) => {
    if (currentMessagesFromEveryone && userId) {
      const { MostRecentMessages } = require("./constants/models");

      const filteredIds = [];

      currentMessagesFromEveryone.forEach(message => {
        filteredIds.push(message.conversation._id);
      });

      console.log("Entered!");

      setTimeout(async () => {
        const mostRecentMessages = await MostRecentMessages.find({
          to: userId,date: { $gt: connectedUsersAllMessages[userId].timeIn },conversation: { $nin: filteredIds }
        }).populate("to from conversation");

        allMessagesSocket.sockets.connected[
          connectedUsersAllMessages[userId].socketId
        ].emit("response",{
          mostRecentMessages
        });
      },5000);
    }
  });

起初，它工作正常。它一次打印Entered!约4、5个请求。然后在6号，它开始打印Entered!两次。

为什么会这样，我在做什么错了？