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Added Flashcard App #1206

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259 changes: 259 additions & 0 deletions FlashcardApp/Flashcard.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Flashcards + Quiz App</title>
<style>
body {
font-family: "Segoe UI", Tahoma, sans-serif;
text-align: center;
background: linear-gradient(135deg, #74ebd5 0%, #9face6 100%);
margin: 0;
padding: 30px;
color: #333;
}
h1 {
margin-bottom: 20px;
font-size: 2rem;
color: #222;
}
.flashcard {
width: 350px;
height: 220px;
margin: 20px auto;
perspective: 1000px;
cursor: pointer;
display: none;
}
.card {
width: 100%;
height: 100%;
position: relative;
transform-style: preserve-3d;
transition: transform 0.6s;
border-radius: 15px;
box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}
.card.flipped {
transform: rotateY(180deg);
}
.front, .back {
position: absolute;
width: 100%;
height: 100%;
backface-visibility: hidden;
display: flex;
align-items: center;
justify-content: center;
font-size: 22px;
font-weight: bold;
border-radius: 15px;
background: #fff;
padding: 15px;
box-sizing: border-box;
}
.back {
transform: rotateY(180deg);
background: #ffe082;
}
button {
margin: 8px;
padding: 12px 18px;
font-size: 14px;
font-weight: bold;
cursor: pointer;
border: none;
border-radius: 8px;
background: #4cafef;
color: white;
box-shadow: 0 3px 6px rgba(0,0,0,0.2);
transition: 0.2s ease;
}
button:hover {
background: #2196f3;
transform: scale(1.05);
}
#createForm {
margin-top: 20px;
display: none;
background: rgba(255,255,255,0.9);
padding: 15px;
border-radius: 12px;
width: 300px;
margin-left: auto;
margin-right: auto;
box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
input {
padding: 8px;
margin: 6px;
font-size: 14px;
width: 85%;
border-radius: 6px;
border: 1px solid #ccc;
}
#quizSection {
display: none;
margin-top: 20px;
background: rgba(255,255,255,0.9);
padding: 20px;
border-radius: 15px;
width: 350px;
margin-left: auto;
margin-right: auto;
box-shadow: 0 4px 15px rgba(0,0,0,0.25);
}
#quizQuestion {
font-size: 20px;
margin-bottom: 10px;
}
#result {
margin-top: 12px;
font-weight: bold;
}
#modeButtons {
margin-bottom: 20px;
}
</style>
</head>
<body>
<h1>📖 Flashcards + Quiz App</h1>

<div id="modeButtons">
<button onclick="switchMode('flashcard')">Flashcard Mode</button>
<button onclick="switchMode('quiz')">Quiz Mode</button>
</div>

<!-- Flashcard Section -->
<div class="flashcard" id="flashcardSection">
<div class="card" id="card">
<div class="front" id="front">Click "Next" to Start</div>
<div class="back" id="back">Answer</div>
</div>
</div>
<div id="flashButtons" style="display:none;">
<button onclick="prevCard()">Previous</button>
<button onclick="nextCard()">Next</button>
<button onclick="toggleCreateForm()">➕ Add Card</button>
<button onclick="shuffleCards()">🔀 Shuffle</button>
</div>

<div id="createForm">
<h3>Create New Flashcard</h3>
<input type="text" id="newQuestion" placeholder="Enter question">
<input type="text" id="newAnswer" placeholder="Enter answer">
<button onclick="addCard()">Add</button>
</div>

<!-- Quiz Section -->
<div id="quizSection">
<div id="quizQuestion">Press Next Question to Start!</div>
<input type="text" id="quizAnswer" placeholder="Your answer">
<button onclick="checkAnswer()">Submit</button>
<button onclick="nextQuiz()">Next Question</button>
<div id="result"></div>
<p>Score: <span id="score">0</span></p>
</div>

<script>
let flashcards = [
{ question: "What is the capital of France?", answer: "Paris" },
{ question: "What is 2 + 2?", answer: "4" },
{ question: "Who wrote Hamlet?", answer: "William Shakespeare" },
{ question: "Largest planet in the solar system?", answer: "Jupiter" },
{ question: "What is the chemical symbol for water?", answer: "H2O" },
{ question: "Speed of light?", answer: "299,792 km/s" }
];

let currentIndex = 0;
let quizIndex = 0;
let score = 0;

const card = document.getElementById("card");
const front = document.getElementById("front");
const back = document.getElementById("back");

function switchMode(mode) {
document.getElementById("flashcardSection").style.display = "none";
document.getElementById("flashButtons").style.display = "none";
document.getElementById("createForm").style.display = "none";
document.getElementById("quizSection").style.display = "none";

if (mode === "flashcard") {
document.getElementById("flashcardSection").style.display = "block";
document.getElementById("flashButtons").style.display = "block";
showCard(currentIndex);
} else {
document.getElementById("quizSection").style.display = "block";
nextQuiz();
}
}

function showCard(index) {
const flashcard = flashcards[index];
front.textContent = flashcard.question;
back.textContent = flashcard.answer;
card.classList.remove("flipped");
}

function nextCard() {
currentIndex = (currentIndex + 1) % flashcards.length;
showCard(currentIndex);
}

function prevCard() {
currentIndex = (currentIndex - 1 + flashcards.length) % flashcards.length;
showCard(currentIndex);
}

card.addEventListener("click", () => {
card.classList.toggle("flipped");
});

function toggleCreateForm() {
const form = document.getElementById("createForm");
form.style.display = form.style.display === "none" ? "block" : "none";
}

function addCard() {
const question = document.getElementById("newQuestion").value.trim();
const answer = document.getElementById("newAnswer").value.trim();
if (question && answer) {
flashcards.push({ question, answer });
document.getElementById("newQuestion").value = "";
document.getElementById("newAnswer").value = "";
alert("✅ Flashcard added!");
} else {
alert("⚠️ Please enter both question and answer.");
}
}

function shuffleCards() {
flashcards.sort(() => Math.random() - 0.5);
currentIndex = 0;
showCard(currentIndex);
alert("🔀 Flashcards shuffled!");
}

function nextQuiz() {
quizIndex = Math.floor(Math.random() * flashcards.length);
document.getElementById("quizQuestion").textContent = flashcards[quizIndex].question;
document.getElementById("quizAnswer").value = "";
document.getElementById("result").textContent = "";
}

function checkAnswer() {
const userAnswer = document.getElementById("quizAnswer").value.trim();
const correctAnswer = flashcards[quizIndex].answer;

if (userAnswer.toLowerCase() === correctAnswer.toLowerCase()) {
document.getElementById("result").textContent = "✅ Correct!";
score++;
} else {
document.getElementById("result").textContent = `❌ Wrong! Correct: ${correctAnswer}`;
}
document.getElementById("score").textContent = score;
}
</script>
</body>
</html>