var Question = function (question, answers, correctAnswer){
    this.question = question;
    this.answers = answers;
    this.correctAnswer = correctAnswer;
};

// Posible Quiz questions

var q1 = new Question ("Is JS the coolest programing language?",["1: Yes", "2: No"], 1);
var q2 = new Question ("Who was your online teacher?", ["1: John", "2: Mark", "3: Jonas", "4: Jane"], 3)
var q3 = new Question ("Is coding awesome?", ["1: Fuck Yeah", "2: It's ok", "3: Not realy"], 1)

var questions = [q1, q2, q3];

function newQ () {
    var score = 0;
    while (input !== 0){

            // Select the question

        var n = Math.floor(Math.random()*questions.length);

            // Print the question

        console.log(questions[n].question + "\n" + questions[n].answers.join('\n'));

            // Get and validate the answer

        var input = parseInt(prompt("Please select correct answer (just type the number).\nEnter \"0\" to quit the game"));
        if (input === questions[n].correctAnswer){
            console.log("That's correct!")
            score = score + 1;
            console.log("-------------------\n Your score is: " + score + "\n-------------------");
        }
        else if (input === 0) {
            console.log("Quiz completed!")
            console.log("-------------------\n Your score is: " + score + "\n-------------------");
        }
        else {
            console.log("Wrong answer.");
            console.log("-------------------\n Your score is: " + score + "\n-------------------");
        };
    };
    return score;
};

newQ();