NodeJS Q Promises Demo

read_prom.js

var fs = require('fs');
var Q = require("q");

/*
Q.all(
	[
		Q.ninvoke(fs, "readFile", "/etc/hosts", "utf8")
	]
)
*/

Q.ninvoke(fs, "readFile", "/etc/hosts", "utf8")
.then(
	function(data){
		console.log(data);
		return Q.ninvoke(fs, "readFile", "/etc/passwd", "utf8");
	}
).then(
	function(data){
		console.log(data);
	}
).fail(
	function(err){
		console.log(err);
	}
);