// this is from MS Press book NodeJS for .Net developers

// functions as function arguments

/*The special thing about JavaScript and passing functions to functions (such as function A as an argument to function B) is that function B doesn't actually use that function per se or anything that it does. Instead, it wires that function as a callback.
The function createServer is not taking any arguments other than a callback function.
Whatever object is returned from the createServer function you called must have a listen function as one of its properties that activates the underlying server code.
*/

http.creatServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(1234, '127.0.0.1');

//The code could be written as follows for clarity (less performant):

var server = http.creatServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
});
server.listen(1234, '127.0.0.1');


// object oriented Javascript


function Person(){
  this.lastName = "";
  this.firstName = "";
}

function Player() {
  this.prototype = Person:
  this.sport = "Football";
  this.displayName = function() {
    return(this.lastName + ',' + this.firstName);
  }
}

var oPlayer = new Player();
oPlayer.firstName = "Walter";
oPlayer.lastName = "Playton";
alert(oPlayer.displayName());

var oPlayer = new Player();

  oPlayer.firstNAme = "Babe";
  oPlayer.lastName = "Ruth";
oPlayer.position = "Pitcher";  
this.displayName = function()( {
  this.lastName + ',' + this.firstName + ":" + this.position;
}

alert(oPlayer.displayName());

function Question(oQuestion, oAllAnswers, oCorrectAnswer) {
  this.questionText = oQuestion;
  this.answerList = oAllAnswers;
  this.correctAnswer = oCorrectAnswer;
}

// Which of these players was on a baseball team?
//   Walter Payton
//   Babe Ruth
//  Tiger Woods