Missing modules?

In the code titled //UDP_TCPclient1.js //2 Oct 2016
The following is the menu system.
Entering a character zero 0 followed by a return should reset the USB.
If you wrapped the code in an oninit() and saved it so it loads on boot,
then power up the board, quickly connect with WebIDE and type 0 return in the left pane
you should be able to reset the USB port.

//Menus
menu=function(){
 USB.print(" \n\r");
 USB.print("Select using digit and return key\n\r");
 USB.print("1 LED Off\n\r");
 USB.print("2 LED On\n\r");
 USB.print("0 Exit\n\r");
};

parsecmd=function(){
USB.print("\n\r");
   switch(this.sst.charAt(0)){
    case "1"://LED off
     sst="";
     USB.print("LED Off\n\r");
     sendit("LED Off");
    break;
    case "2"://LED On
     USB.print("LED On\n\r");
     sst="";
     sendit("LED On");
    break;
    case"0"://Exit
     LoopbackA.print("USB.setConsole();\n\r")­;
     sst="";
     USB.print("Exit\n\r");
    break;
    default:
     menu();
    break;
  }//end switch sst
};//end parsecmd

//input cmd from terminal,send it to parsecmd()
USB.on('data', function (data) {
 var i;
  sst+=data;
  USB.print(data);
  if(sst.length>0)
  if(sst.charAt(sst.length-1)==="\r")parse­cmd();
});

//Espruino replies here
LoopbackA.on('data',function(data){
  USB.print(data); //sending data to terminal
});

/////////////////////////
setTimeout(function () {
var x;
console.log("Start");
  LoopbackB.setConsole();
x=test();
if(x!==0)console.log("Try again");//error seen

if(x===0) console.log("Exit Seen");
}, 1000);

The left screen

>echo(0);
=undefined
Start
-> LoopbackB
<- USB
Start connection process
Try again
Reset the ESP8266
Connecting to WiFi
OKxx1
OKxx2
>0 I entered a zero return
Exit
<- LoopbackB
=undefined
=undefined
>USB.setConsole();
-> USB
1       I entered a 1 return
=1
>