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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" /> | ||
<script src="script.js" defer></script> | ||
<title>Quiz App</title> | ||
</head> | ||
<body> | ||
<div class="quiz-container"> | ||
<div id="question-container"> | ||
<h3 id="question">Question</h3> | ||
<div id="answer-buttons"></div> | ||
</div> | ||
<button id="next-btn" class="btn hide">Next</button> | ||
<div id="result" class="hide"></div> | ||
<button id="restart-btn" class="btn hide">Restart</button> | ||
</div> | ||
</body> | ||
</html> |
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const questionContainer = document.getElementById("question-container"); | ||
const questionElement = document.getElementById("question"); | ||
const answerButtons = document.getElementById("answer-buttons"); | ||
const nextButton = document.getElementById("next-btn"); | ||
const restartButton = document.getElementById("restart-btn"); | ||
const resultDiv = document.getElementById("result"); | ||
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let shuffledQuestions, currentQuestionIndex, score; | ||
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const questions = [ | ||
{ | ||
question: "What is 2 + 2?", | ||
answers: [ | ||
{ text: "4", correct: true }, | ||
{ text: "22", correct: false }, | ||
{ text: "222", correct: false }, | ||
{ text: "2222", correct: false }, | ||
], | ||
}, | ||
{ | ||
question: "What is the capital of France?", | ||
answers: [ | ||
{text:"London",correct:false}, | ||
{text:"Berlin",correct:false}, | ||
{text:"Paris",correct:true}, | ||
{text: "Madrid",correct:false} | ||
], | ||
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}, | ||
{ | ||
question: "Which planet is known as the Red Planet?", | ||
answers: [ | ||
{text:"Mars",correct:true}, | ||
{text: "Earth",correct:false}, | ||
{text:"Venus",correct:false}, | ||
{text:"Jupiter",correct:false} | ||
], | ||
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}, | ||
{ | ||
question: "What does HTML stand for?", | ||
answers: [ | ||
{ text: "HyperText Markup Language", correct: true }, | ||
{ text: "HighText Machine Language", correct: false }, | ||
{ text: "HyperText Machine Language", correct: false }, | ||
{ text: "HighText Markup Language", correct: false }, | ||
], | ||
}, | ||
{ | ||
question: "Which property is used to change the background color?", | ||
answers: [ | ||
{ text: "color", correct: false }, | ||
{ text: "bgColor", correct: false }, | ||
{ text: "background-color", correct: true }, | ||
{ text: "background", correct: false }, | ||
], | ||
}, | ||
{ | ||
question: "Inside which HTML element do we put the JavaScript?", | ||
answers: [ | ||
{ text: "<js>", correct: false }, | ||
{ text: "<javascript>", correct: false }, | ||
{ text: "<script>", correct: true }, | ||
{ text: "<scripting>", correct: false }, | ||
], | ||
}, | ||
]; | ||
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startQuiz(); | ||
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function startQuiz() { | ||
score = 0; | ||
questionContainer.style.display = "flex"; | ||
shuffledQuestions = questions.sort(() => Math.random() - 0.5); | ||
currentQuestionIndex = 0; | ||
nextButton.classList.remove("hide"); | ||
restartButton.classList.add("hide"); | ||
resultDiv.classList.add("hide"); | ||
setNextQuestion(); | ||
} | ||
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function setNextQuestion() { | ||
resetState(); | ||
showQuestion(shuffledQuestions[currentQuestionIndex]); | ||
} | ||
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function showQuestion(question) { | ||
questionElement.innerText = question.question; | ||
question.answers.forEach((answer, index) => { | ||
const inputGroup = document.createElement("div"); | ||
inputGroup.classList.add("input-group"); | ||
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const radio = document.createElement("input"); | ||
radio.type = "radio"; | ||
radio.id = "answer" + index; | ||
radio.name = "answer"; | ||
radio.value = index; | ||
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const label = document.createElement("label"); | ||
label.htmlFor = "answer" + index; | ||
label.innerText = answer.text; | ||
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inputGroup.appendChild(radio); | ||
inputGroup.appendChild(label); | ||
answerButtons.appendChild(inputGroup); | ||
}); | ||
} | ||
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function resetState() { | ||
while (answerButtons.firstChild) { | ||
answerButtons.removeChild(answerButtons.firstChild); | ||
} | ||
} | ||
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nextButton.addEventListener("click", () => { | ||
const answerIndex = Array.from( | ||
answerButtons.querySelectorAll("input") | ||
).findIndex((radio) => radio.checked); | ||
if (answerIndex !== -1) { | ||
if (shuffledQuestions[currentQuestionIndex].answers[answerIndex].correct) { | ||
score++; | ||
} | ||
currentQuestionIndex++; | ||
if (shuffledQuestions.length > currentQuestionIndex) { | ||
setNextQuestion(); | ||
} else { | ||
endQuiz(); | ||
} | ||
} else { | ||
alert("Please select an answer."); | ||
} | ||
}); | ||
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restartButton.addEventListener("click", startQuiz); | ||
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function endQuiz() { | ||
questionContainer.style.display = "none"; | ||
nextButton.classList.add("hide"); | ||
restartButton.classList.remove("hide"); | ||
resultDiv.classList.remove("hide"); | ||
resultDiv.innerText = `Your final score: ${score} / ${shuffledQuestions.length}`; | ||
} |
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body { | ||
display: flex; | ||
justify-content: center; | ||
align-items: center; | ||
height: 100vh; | ||
margin: 0; | ||
padding: 0; | ||
background-color: #f9f9f9; | ||
} | ||
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.quiz-container { | ||
display: flex; | ||
flex-direction: column; | ||
width: 30rem; | ||
max-width: 80%; | ||
background-color: white; | ||
border-radius: 0.5rem; | ||
box-shadow: 0 0 0.6rem 0.1rem rgba(0, 0, 0, 0.1); | ||
} | ||
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#question-container { | ||
flex-direction: column; | ||
gap: 2rem; | ||
padding: 2rem; | ||
} | ||
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#question { | ||
text-align: center; | ||
margin-bottom: 0; | ||
margin-top: 1rem; | ||
} | ||
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#answer-buttons { | ||
display: flex; | ||
flex-direction: column; | ||
align-items: flex-start; | ||
gap: 1.25rem; | ||
margin-bottom: 1rem; | ||
} | ||
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.input-group { | ||
display: flex; | ||
align-items: center; | ||
gap: 1rem; | ||
} | ||
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input { | ||
width: fit-content; | ||
} | ||
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.btn { | ||
padding: 1.5rem; | ||
background-color: #70b5ff; | ||
color: white; | ||
border: none; | ||
border-radius: 0 0 0.5rem 0.5rem; | ||
} | ||
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input, | ||
.btn { | ||
cursor: pointer; | ||
} | ||
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.btn:hover { | ||
background-color: #3282d8; | ||
} | ||
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.hide { | ||
display: none; | ||
} | ||
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#result { | ||
margin: 2rem auto; | ||
} | ||
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#question, | ||
#result { | ||
font-size: 1.5rem; | ||
font-weight: bold; | ||
} |