title: socket.io: How to emit an Array and a Variable simultaneously
body: <p>Learning Node.js, Express.js and Socket.io.</p>
  
  <p>Made a Chat an it works so far.</p>
  
  <p>Now I would like to emit to the Client, that a user has entered or left the chat by emiting a variable that indicates that...</p>
  
  <p>Ist that possible?</p>
  
  <p>So something like this:</p>
  
  <p>Server.js</p>
  
  <pre><code>var users = [];
  var inout;
  function updateUsers(){
      io.emit('users', users, 'inout', inout);
  }
  </code></pre>
  
  <p>Client:</p>
  
  <pre><code>var socket = io.connect( 'http://'+window.location.hostname+':3000' );
      socket.on('users', function(data){
  
  // how to get the 'inout' here? }
  </code></pre>
  
  <p>Thanks for any Help... ;)</p>