Can you guess what the console will print? Extracted from the book Mastering Node.js

asyncQuiz.js

var fs = require('fs');
var EventEmitter = require('events').EventEmitter;
var pos = 0;
var messenger = new EventEmitter();

messenger.on('message', function(msg) { console.log(++pos + " message:" + msg);
});

console.log(++pos + " first");

process.nextTick(function(){
	console.log(++pos + " nextTick");
});

messenger.emit('message', "hello!");
fs.stat(__filename, function(){
	console.log(++pos + " stat");
});

setTimeout(function(){
	console.log(++pos + " quick timer");
}, 0);
setTimeout(function(){
	console.log(++pos + " long timer");
}, 30);
setImmediate(function(){
	console.log(++pos + " immediate");
});

console.log(++pos + " last");

1 first
2 message:hello!
3 last
4 nextTick
5 stat
6 immediate
7 quick timer
8 long timer

When I use fs.readfile on NodeJS v4.2.1 output is like below

1 first
2 message:hello!
3 last
4 nextTick
5 quick timer
6 immediate
7 readFile
8 long timer