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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"> | ||
| <title>JavaScript Hard Quiz</title> | ||
| <style> | ||
| body { | ||
| font-family: Arial, sans-serif; | ||
| background-color: #08114c; | ||
| margin: 0; | ||
| padding: 20px; | ||
| display: flex; | ||
| align-items: center; | ||
| justify-content: center; | ||
| height: 100vh; | ||
| } | ||
|
|
||
| .quiz-container { | ||
| background-color: white; | ||
| padding: 20px; | ||
| border-radius: 10px; | ||
| box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2); | ||
| max-width: 600px; | ||
| width: 100%; | ||
| } | ||
|
|
||
| h1 { | ||
| text-align: center; | ||
| margin-bottom: 20px; | ||
| } | ||
|
|
||
| .question { | ||
| margin-bottom: 15px; | ||
| } | ||
|
|
||
| .options { | ||
| list-style-type: none; | ||
| padding: 0; | ||
| } | ||
|
|
||
| .option { | ||
| background-color: #e7f3fe; | ||
| padding: 10px; | ||
| border-radius: 5px; | ||
| margin: 5px 0; | ||
| cursor: pointer; | ||
| transition: background-color 0.3s; | ||
| border: 2px solid transparent; | ||
| } | ||
|
|
||
| .option:hover { | ||
| background-color: #d1e7fd; | ||
| } | ||
|
|
||
| .selected { | ||
| background-color: #b3e5fc; | ||
| border: 2px solid #007bff; | ||
| } | ||
|
|
||
| button { | ||
| background-color: #007bff; | ||
| color: white; | ||
| border: none; | ||
| padding: 10px; | ||
| border-radius: 5px; | ||
| cursor: pointer; | ||
| display: block; | ||
| width: 100%; | ||
| margin-top: 10px; | ||
| } | ||
|
|
||
| button:hover { | ||
| background-color: #0056b3; | ||
| } | ||
|
|
||
| .hidden { | ||
| display: none; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body> | ||
| <div class="quiz-container"> | ||
| <h1>JavaScript Hard Quiz</h1> | ||
| <div id="question-container"></div> | ||
| <button id="next-button" class="hidden" onclick="nextQuestion()">Next Question</button> | ||
| <button id="submit-button" class="hidden" onclick="submitAnswers()">Submit Answers</button> | ||
| </div> | ||
|
|
||
| <script> | ||
| const questions = [ | ||
| { | ||
| question: "1) What is the output of the following code: (1 + '1') * 2?", | ||
| options: [ | ||
| "2", | ||
| "'11'", | ||
| "12", | ||
| "Error" | ||
| ], | ||
| answer: 2 | ||
| }, | ||
| { | ||
| question: "2) What is the purpose of 'bind()' method in JavaScript?", | ||
| options: [ | ||
| "To bind event listeners", | ||
| "To bind a function to a specific context", | ||
| "To bind an object to a function", | ||
| "None of the above" | ||
| ], | ||
| answer: 1 | ||
| }, | ||
| { | ||
| question: "3) Which of the following is NOT a primitive data type in JavaScript?", | ||
| options: [ | ||
| "String", | ||
| "Number", | ||
| "Object", | ||
| "Boolean" | ||
| ], | ||
| answer: 2 | ||
| }, | ||
| { | ||
| question: "4) What is the output of the following code: typeof NaN?", | ||
| options: [ | ||
| "number", | ||
| "undefined", | ||
| "object", | ||
| "NaN" | ||
| ], | ||
| answer: 0 | ||
| }, | ||
| { | ||
| question: "5) How do you create a promise in JavaScript?", | ||
| options: [ | ||
| "Promise = new Promise()", | ||
| "new Promise()", | ||
| "create new Promise()", | ||
| "None of the above" | ||
| ], | ||
| answer: 1 | ||
| } | ||
| ]; | ||
|
|
||
| let currentQuestionIndex = 0; | ||
| let score = 0; | ||
|
|
||
| function showQuestion() { | ||
| const questionContainer = document.getElementById('question-container'); | ||
| const question = questions[currentQuestionIndex]; | ||
| questionContainer.innerHTML = ` | ||
| <div class="question"> | ||
| <h3>${question.question}</h3> | ||
| <ul class="options"> | ||
| ${question.options.map((option, i) => ` | ||
| <li class="option" onclick="selectOption(this, ${i})">${option}</li> | ||
| `).join('')} | ||
| </ul> | ||
| </div> | ||
| `; | ||
| document.getElementById('next-button').classList.add('hidden'); | ||
| document.getElementById('submit-button').classList.add('hidden'); | ||
| } | ||
|
|
||
| function selectOption(optionElement, selectedIndex) { | ||
| const options = document.querySelectorAll('.option'); | ||
| options.forEach(option => option.classList.remove('selected')); | ||
| optionElement.classList.add('selected'); | ||
|
|
||
| const question = questions[currentQuestionIndex]; | ||
| if (selectedIndex === question.answer) { | ||
| score++; | ||
| } | ||
|
|
||
| document.getElementById('next-button').classList.remove('hidden'); | ||
| } | ||
|
|
||
| function nextQuestion() { | ||
| currentQuestionIndex++; | ||
| if (currentQuestionIndex < questions.length) { | ||
| showQuestion(); | ||
| } else { | ||
| document.getElementById('next-button').classList.add('hidden'); | ||
| document.getElementById('submit-button').classList.remove('hidden'); | ||
| document.getElementById('question-container').innerHTML = `<h3>Challenge Complete! Your score is ${score} out of ${questions.length}</h3>`; | ||
| } | ||
| } | ||
|
|
||
| function submitAnswers() { | ||
| alert(`You scored ${score} out of ${questions.length}`); | ||
| window.location.href = 'index.html'; // Redirect to main page after submitting | ||
| } | ||
|
|
||
| window.onload = showQuestion; | ||
| </script> | ||
| </body> | ||
| </html> |