I came up with a solution which seperates the questionning from the html-build-up. Is this desirable or less so?

var corrAnsw = 0;
var answSkipped = 0;
var htmlOutput = '';
var quizList = [
  ['What was the profession of the famous Malevich?', 'painter'],
  ['How many cantons does Switzerland have?', '26'],
  ['Are Java and JavaScript the same?', 'no'],
  ['What is the capital of Germany?', 'berlin'],
  ['What was the keyword for the activation of the audio interface of the star ships in the Star Trek Series?', 'computer']
];

function print(message) {
    document.write(message);
}

function runQuiz(passArray) {
    for( i = 0; i < passArray.length; i += 1) {
        var currentQuestion = '';
        while (currentQuestion === ''){
            currentQuestion = prompt(passArray[i][0]);
        }
        //4 input states: empty, cancelled(skipped), wrong, correct
        if (currentQuestion != null) {
            if (currentQuestion.toLowerCase() === passArray[i][1]){
                corrAnsw += 1;
                //console.log('corrAnsw: ' + corrAnsw);
                passArray[i].push(true);
            } else {
                passArray[i].push(false);
            }
        } else {
            passArray[i].push(false);
            answSkipped += 1;
        }
        //console.log('passArray[i][2]: ' + passArray[i][2]);
    }
}

function createList(passPhrase) {
    htmlOutput += '<h2>' + passPhrase + '</h2><ol>';
    for(i = 0; i < quizList.length; i += 1) {
        //list all correctly answered questions
        if (quizList[i][2]){
            htmlOutput += '<li>' + quizList[i][0] + '</li>';
        }
    }
    htmlOutput += '</ol>';
}

function createWrong(passPhrase) {
    htmlOutput += '<h2>' + passPhrase + '</h2><ol>';
    for(i = 0; i < quizList.length; i += 1){
        //list all wrongly answered questions + display solutions
        if (!quizList[i][2]){
            htmlOutput += '<li>' + quizList[i][0] + ' The right answer was: ' + quizList[i][1] + '. </li>';
        }
    }
    htmlOutput += '</ol>';
}

//Running the quiz, saves answers (true/false) to the "quizList"-array
runQuiz(quizList);
//console.log(quizList);


//Building up HTML-output after the quiz
htmlOutput += '<h2>You got ' + corrAnsw + ' of a total of ' + quizList.length + ' question(s) right.</h2>';
//Displaying skipped
if(answSkipped > 0) {
    htmlOutput += '<h2>You skipped ' + answSkipped + ' question(s).</h2>';
}

//A - 'You got all question(s) correct:'
//B - 'You got all question(s) wrong:'
//C - 'You got these question(s) correct:'
//    'You got these question(s) wrong:'
if (corrAnsw === quizList.length) {
    createList('You got all questions correct:');
} else if (corrAnsw === 0) {
    createWrong('You got all questions wrong:');
} else {
    createList('You got these question(s) correct:');
    createWrong('You got these question(s) wrong:');
}

print(htmlOutput);