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Quiz app

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This commit is contained in:
Brad Traversy 2020-10-20 09:28:28 -04:00
parent e4fdaa7654
commit 9a25d6022f
3 changed files with 207 additions and 0 deletions
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quiz-app/index.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="style.css" />
<title>Quiz App</title>
</head>
<body>
<div class="quiz-container" id="quiz">
<div class="quiz-header">
<h2 id="question">Question text</h2>
<ul>
<li>
<input type="radio" name="answer" id="a" class="answer">
<label for="a" id="a_text">Question</label>
</li>
<li>
<input type="radio" name="answer" id="b" class="answer">
<label for="b" id="b_text">Question</label>
</li>
<li>
<input type="radio" name="answer" id="c" class="answer">
<label for="c" id="c_text">Question</label>
</li>
<li>
<input type="radio" name="answer" id="d" class="answer">
<label for="d" id="d_text">Question</label>
</li>
</ul>
</div>
<button id="submit">Submit</button>
</div>
<script src="script.js"></script>
</body>
</html>

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quiz-app/script.js Normal file
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const quizData = [
{
question: "Which language runs in a web browser?",
a: "Java",
b: "C",
c: "Python",
d: "JavaScript",
correct: "d",
},
{
question: "What does CSS stand for?",
a: "Central Style Sheets",
b: "Cascading Style Sheets",
c: "Cascading Simple Sheets",
d: "Cars SUVs Sailboats",
correct: "b",
},
{
question: "What does HTML stand for?",
a: "Hypertext Markup Language",
b: "Hypertext Markdown Language",
c: "Hyperloop Machine Language",
d: "Helicopters Terminals Motorboats Lamborginis",
correct: "a",
},
{
question: "What year was JavaScript launched?",
a: "1996",
b: "1995",
c: "1994",
d: "none of the above",
correct: "b",
},
];
const quiz = document.getElementById('quiz')
const answerEls = document.querySelectorAll('.answer')
const questionEl = document.getElementById('question')
const a_text = document.getElementById('a_text')
const b_text = document.getElementById('b_text')
const c_text = document.getElementById('c_text')
const d_text = document.getElementById('d_text')
const submitBtn = document.getElementById('submit')
let currentQuiz = 0
let score = 0
loadQuiz()
function loadQuiz() {
deselectAnswers()
const currentQuizData = quizData[currentQuiz]
questionEl.innerText = currentQuizData.question
a_text.innerText = currentQuizData.a
b_text.innerText = currentQuizData.b
c_text.innerText = currentQuizData.c
d_text.innerText = currentQuizData.d
}
function deselectAnswers() {
answerEls.forEach(answerEl => answerEl.checked = false)
}
function getSelected() {
let answer
answerEls.forEach(answerEl => {
if(answerEl.checked) {
answer = answerEl.id
}
})
return answer
}
submitBtn.addEventListener('click', () => {
const answer = getSelected()
if(answer) {
if(answer === quizData[currentQuiz].correct) {
score++
}
currentQuiz++
if(currentQuiz < quizData.length) {
loadQuiz()
} else {
quiz.innerHTML = `
<h2>You answered ${score}/${quizData.length} questions correctly</h2>
<button onclick="location.reload()">Reload</button>
`
}
}
})

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@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;400&display=swap');
* {
box-sizing: border-box;
}
body {
background-color: #b8c6db;
background-image: linear-gradient(315deg, #b8c6db 0%, #f5f7fa 100%);
font-family: 'Poppins', sans-serif;
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
overflow: hidden;
margin: 0;
}
.quiz-container {
background-color: #fff;
border-radius: 10px;
box-shadow: 0 0 10px 2px rgba(100, 100, 100, 0.1);
width: 600px;
overflow: hidden;
}
.quiz-header {
padding: 4rem;
}
h2 {
padding: 1rem;
text-align: center;
margin: 0;
}
ul {
list-style-type: none;
padding: 0;
}
ul li {
font-size: 1.2rem;
margin: 1rem 0;
}
ul li label {
cursor: pointer;
}
button {
background-color: #8e44ad;
color: #fff;
border: none;
display: block;
width: 100%;
cursor: pointer;
font-size: 1.1rem;
font-family: inherit;
padding: 1.3rem;
}
button:hover {
background-color: #732d91;
}
button:focus {
outline: none;
background-color: #5e3370;
}