To work with the console through ethernet module wiz5500.

Try:

var server = require("net").createServer(function(c) {
  console.log('server connected');
  c.write('Your welcome message!\r\n');
  LoopbackA.setConsole();
  LoopbackB.pipe(c);
  c.pipe(LoopbackB);
}).listen(23);

You'll have to be careful not to reset() - which the Web IDE does automatically at upload normally - since that will remove the server which is serving your code!

You could do a little with:

var reallyReset = reset;
function reset() {
  clearWatch();
  clearInterval();
}

But that wouldn't delete any uploaded functions.