Basic throw for Promises in Javascript

promises.js

var http = require('http');
var url = process.argv[2];
// ej: http://www.html5rocks.com/en/tutorials/es6/promises/story.json

function get(url) {
    return new Promise(function(resolve, reject){

        http.get(url, function (res) {
            if (res.statusCode === 200) {
                res.setEncoding('utf8');
                res.on('data', function (raw) {
                    var result = raw;
                    resolve(result);
                });
            } else {
                res.on('error', function(raw) {
                    var result = raw;
                    reject(result);
                });
            }
        });

    })
}

get(url).then(function(response) {
    console.log("Exito!\n\n", response);
}, function(error) {
    console.error("Fallo!\n\n", error);
});