Small wrapper over WebSocket

SocketIO.js

function SocketIO(url) {
  this.socket = new WebSocket(url);
  this.actions = {};
  var self = this;

  this.socket.onmessage = function(event) {
    var name, message;
    [name, message] = self.parse_data(event.data);
    self.actions[name](message)
  }
}

SocketIO.prototype.on = function(name, action) {
  this.actions[name] = action;
}

SocketIO.prototype.emit = function(name, message) {
  var json_message = { name: name, message: message };
  this.socket.send(JSON.stringify(json_message));
}

SocketIO.prototype.parse_data = function(data) {
  var json_data = JSON.parse(data);
  return [json_data.name, json_data.message];
}