The programmer of Isitchristmas.com might have been a little depressed while writing their code

var setHeartbeat = function () i

clearTimeout (heartbeat) ;

heartbeat = setTimeout (function () ‹

10g. debug (“heartbeat: beating”);

emit (“heartbeat”, myHeart ()) :

1, parseInt (user. live.heartbeat_interval));

death = setTimeout (function) {

10g.life(“= Died from lack of heartbeat : (“)

socket. close () :

1, parseint (user. live death_interval)) ;

1:

on (“heartbeat”, function (data) {

if (suicide) return; // let death take me

clearTimeout (death); // death averted

10g. debug (“heartbeat: returned, death averted”) ;

setHeartbeat ) ;

1) :

on (‘arrive’,

function (other) {

registerOther (other) ;

// let a new arrival know you are already here

emit (“here”, (to: other.id)) ;

}) :

on (‘here’,

function (other) {

registerOther (other);

}) :

on (‘leave’, function (data) ‹ removeOther (data.id) ;

1) :