我一直在努力学习Javascript OOP,所以我做了一个测验。但是由于某种原因,我的html没有填充我提出的问题和答案。我无法弄清楚这个问题。任何帮助将不胜感激!
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Edgy Quiz</title>
<link type="text/css" rel="stylesheet" href="style.css"/>
</head>
<body>
<h1>In a world where everyone is looking to stand out from the crowd</h1>
<h2>Does the extend of your own edginess confuse you?</h2>
<h3>Well this scientifically proven personality test was built for you!</h3>
<div class="grid">
<div id="quiz">
<h4>How edgy are you?</h4>
<hr style="margin-top: 20px">
<p id="question"></p>
<div class="buttons">
<button id="btn0"><span id="choice0"></span></button>
<button id="btn1"><span id="choice1"></span></button>
<button id="btn2"><span id="choice2"></span></button>
<button id="btn3"><span id="choice3"></span></button>
</div>
<hr style="margin-top: 50px">
<footer>
<p id="progress">Question x of y.</p>
</footer>
</div>
</div>
<script type="text/javascript" src="script.js"></script>
</body>
</html>
$(window).load(function() {
function Question(text, choices, answer) {
this.text = text;
this.choices = choices;
this.answer = answer;
}
Question.prototype.correctAnswer = function(choice) {
return choice === this.answer;
}
function Quiz(questions) {
this.score = 0;
this.questions = questions;
this.questionIndex = 0;
}
Quiz.prototype.getQuestionIndex = function() {
return this.questions[this.questionIndex];
}
Quiz.prototype.isEnded = function() {
return this.questions.length === this.questionIndex;
}
Quiz.prototype.guess = function(answer) {
if (this.getQuestionIndex().correctAnswer(answer)) {
this.score++;
}
this.questionIndex++;
}
function populate() {
if(quiz.isEnded()) {
showScores();
}
else {
var element = document.getElementById("question");
element.innerHTML = quiz.getQuestionIndex().text;
var choices = quiz.getQuestionIndex().choices;
for(var i = 0; i < choices.length; i++) {
var element = document.getElementById("choice" + i);
element.innerHTML = choices[i];
guess("btn" + i, choices[i]);
}
showProgress();
}
}
function guess(id, guess) {
var button = document.getElementById(id);
button.onclick = function () {
quiz.guess(guess);
populate();
}
}
function showProgress () {
var currentQuestionNumber = quiz.questionIndex + 1;
var element = document.getElementById("progress");
element.innerHTML = "Question " + currentQuestionNumber + "of " +
quiz.questions.length;
}
function showScores() {
var gameOverHtml = "<h1>Result</h1>";
gameOverHtml += "<h2 id='score'>Your score: ' + quiz.score + '</h2>";
var element = document.getElementById("quiz");
element.innerHTML = gameOverHtml;
}
var questions = [
new Question ("How have you discovered this test?", ["I was bored browsing
online", "I want to see how edgy I am", "Im a friend doing it out of
Sympathy", "Im looking at this weirdo's portfolio"], "Im looking at this
weirdo's portfolio"),
new Question ("How edgy do you think you are?", ["Extremely edgy", "Im very
mainstream", "What does edgy even mean?", "I don't do labels"], "I don't do
labels"),
new Question ("Of these colors which is your favourite?", ["Blue", "Orange",
"Majenta", "Black"], ""),
new Question ("Could you bring yourself to hurt a living thing?", ["Only if
it hurt me first", "I hurt stuff for fun", "No never how could you im a
vegan", "I hurt myself all the time"], "I hurt myself all the time"),
new Question ("If someone tickled you how would you respond?", ["Tickle
fight", "Run away", "Punch them in the face", "Write a song"], "Write a
song"),
];
var quiz = new Quiz(questions);
populate();
});