var http = require("http");
var uc = require("upper-case");
// npm install upper-case@2.0.2 <- ninstalovat knihovnu

var PORT = process.argv[2] || 8080;

if(!process.argv[2]) { 
    console.log ("nebyl zadaný port, použije se výchozí 8080");
}

http.createServer(function (req,res) {
    res.writeHead(200, {"content-type":"text/html"});
    res.write(uc.upperCase("HeLLo WoRLd"));
    res.end();
}).listen(PORT);

console.log("Server bezi na http://localhost:" + PORT);

//npm run test 
//http://localhost:8080/