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POSocket.IO get connected clients list
 

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    <p>I'm having a heck of a time finding documentation on <code>io.sockets.clients()</code> so I can retrieve the connected clients id, username, etc. When I <code>alert(io.sockets.clients().length.toString());</code> it gives me the correct number, but I need to find the structure of the array. Is there a way I can figure out the array without knowing the structure? Much like php's <code>print_r()</code>?</p> <p>Code so far:</p> <pre><code>socket.on('switchRoom', function(newroom){ var clients = io.sockets.clients(); socket.emit('users', clients); }); socket.on('users', function(usernames) { for(var client in usernames) { console.log(usernames[client].id + ' disconnected: ' + usernames[client].disconnected) } }); </code></pre> <p>I receive this error after 'switchRoom' is fired</p> <pre><code>/home/ed/socket/chat/node_modules/socket.io/lib/parser.js:81 data = JSON.stringify(ev); ^ TypeError: Converting circular structure to JSON at Object.stringify (native) at Object.encodePacket (/home/ed/socket/chat/node_modules/socket.io/lib/parser.js:81:19) at Socket.packet (/home/ed/socket/chat/node_modules/socket.io/lib/socket.js:202:21) at Socket.emit (/home/ed/socket/chat/node_modules/socket.io/lib/socket.js:351:15) at Socket.&lt;anonymous&gt; (/home/ed/socket/chat/app.js:58:10) at Socket.$emit (events.js:64:17) at SocketNamespace.handlePacket (/home/ed/socket/chat/node_modules/socket.io/lib/namespace.js:331:20) at Manager.onClientMessage (/home/ed/socket/chat/node_modules/socket.io/lib/manager.js:436:38) at WebSocket.onMessage (/home/ed/socket/chat/node_modules/socket.io/lib/transport.js:387:20) at Parser.&lt;anonymous&gt; (/home/ed/socket/chat/node_modules/socket.io/lib/transports/websocket/hybi-07-12.js:38:10) </code></pre>
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