Here's the official solution in case you want to compare notes: 

 

var http = require('http')       var bl = require('bl')       var results = []       var count = 0              function printResults () {         for (var i = 0; i < 3; i++)           console.log(results[i])       }              function httpGet (index) {         http.get(process.argv[2 + index], function (response) {           response.pipe(bl(function (err, data) {             if (err)               return console.error(err)                    results[index] = data.toString()             count++                    if (count == 3)               printResults()           }))         })       }              for (var i = 0; i < 3; i++)         httpGet(i)