Socket.io 客户端:使用一个处理程序响应所有事件? [英] Socket.io Client: respond to all events with one handler?

问题描述

是否可以让 socket.io 客户端响应所有事件而不必单独指定每个事件?

Is it possible to have a socket.io client respond to all events without to have specify each event individually?

例如，这样的事情(现在显然行不通):

For example, something like this (which obviously doesn't work right now):

var socket = io.connect("http://myserver");

socket.on("*", function(){
  // listen to any and all events that are emitted from the
  // socket.io back-end server, and handle them here.

  // is this possible? how can i do this?
});

我希望在客户端 socket.io 代码接收到任何/所有事件时调用此回调函数.

I want this callback function to be called when any / all events are received by the client-side socket.io code.

这可能吗?怎么样?

推荐答案

看起来 socket.io 库将这些存储在字典中.因此，不要认为不修改源就不可能做到这一点.

It looks like the socket.io library stores these in a dictionary. As such, don't think this would be possible without modifying the source.

来自来源:

EventEmitter.prototype.on = function (name, fn) {
    if (!this.$events) {
      this.$events = {};
    }

    if (!this.$events[name]) {
      this.$events[name] = fn;
    } else if (io.util.isArray(this.$events[name])) {
      this.$events[name].push(fn);
    } else {
      this.$events[name] = [this.$events[name], fn];
    }

    return this;
  };

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