Handling multiple async requests in nodejs

juggling_async.js

var http = require('http')
var concat = require('concat-stream')

var urls = process.argv.slice(2)
var strings = []
function loadURls(){
    var url = urls.shift()
    if(!url){
        strings.forEach(myString => {
            console.log(myString)
        })
        return
    }
    http.get(url, res => {
        res.setEncoding('utf8');
        res.pipe(concat(data => {
            strings.push(data)
            loadURls()
        }))
            
    })
    
}

loadURls()