```
**Explanation and Rationale:**
1. **``:**
* **Content:** "GATE 2023 Textile Engineering Q26: Double Jersey Weft Knitted Structures | Examprev"
* **Why:** Clearly states the exam, year, question number, and the core topic. It's concise, keyword-rich (`GATE 2023`, `Textile Engineering`, `Double Jersey`, `Weft Knitted Structures`), and includes the brand name for recognition. (Approx. 75 characters)
2. **`<meta name="description">`:**
* **Content:** "Solve GATE 2023 Textile Engineering Question 26 on double jersey weft knitted structures. Understand Rib, Interlock, and Eight lock fabrics in knitting technology. Find the correct answer & explanation."
* **Why:** Expands on the title, includes more keywords (`knitting technology`, `Rib`, `Interlock`, `Eight lock`), highlights the value proposition (solve, understand, explanation), and encourages clicks. (Approx. 185 characters)
3. **`<meta name="keywords">`:**
* **Content:** "textile engineering gate 2023 question 26, double jersey structure, weft knitted structures, knitting technology, rib knit, interlock knit, eight lock knit, textile exam questions, gate textile engineering, knitted fabric types, textile science, examprev"
* **Why:** While less impactful for ranking than in the past, it's still good practice to include a relevant, comprehensive list of terms that users might search for.
4. **`<meta name="robots">`:**
* **Content:** "index, follow"
* **Why:** Instructs search engines to crawl and index this page and follow any links on it. This is the standard for content you want to appear in search results.
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* `og:type`: `article` is appropriate for a question page with an explanation.
* `og:url`: The direct URL of the page.
* `og:title`: A compelling title for social sharing, similar to the SEO title.
* `og:description`: A concise and engaging summary for social shares.
* `og:image`: **Crucial for engagement.** Replace the placeholder with an actual image relevant to textile engineering, the GATE exam, or the Examprev brand. A good image significantly increases click-through rates on social media.
* `og:site_name`: Clearly identifies the website.
7. **Twitter Card Tags (`twitter:`):**
* **Why:** These control how the page appears when shared on Twitter.
* `twitter:card`: `summary_large_image` provides a prominent image and text, which is usually best for visibility.
* `twitter:url`, `twitter:title`, `twitter:description`, `twitter:image`: Similar to Open Graph, tailored for Twitter's display. The description includes relevant hashtags for better discoverability on Twitter.
* `twitter:site`: Replace `@ExamprevOfficial` with the actual Twitter handle for Examprev, allowing proper attribution and engagement.
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Textile Engineering > GATE 2023 > Weft Knitted Structures
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<div class="question-text">Amongst the following weft knitted structures, double jersey structure(s) is/are _______.</div>
<div class="mcq-options">
<div class="option" onclick="selectOption(this,'A')"><div class="option-label">A</div><div class="option-value">Rib</div></div>
<div class="option" onclick="selectOption(this,'B')"><div class="option-label">B</div><div class="option-value">Interlock</div></div>
<div class="option" onclick="selectOption(this,'C')"><div class="option-label">C</div><div class="option-value">Single cross tuck</div></div>
<div class="option" onclick="selectOption(this,'D')"><div class="option-label">D</div><div class="option-value">Eight lock</div></div>
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<p><b>Correct :</b> b,d</p>
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Inhaling the smoke from a burning _________ could _________ you quickly.
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<script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>
<script>
// Get data from Laravel controller
const user = null;
const sampleNotifications = [];
// Global variables to store menu elements
let notificationBtn, notificationMenu, notificationOverlay, notificationBadge;
// Generate notification content function
function generateNotificationContent() {
if (!user) {
return `
<div class="login-prompt">
<i class="fas fa-user-lock"></i>
<h6>Sign in to View Notifications</h6>
<p>Login to access your personalized notifications and stay updated with your exam progress.</p>
<a href="/login" class="login-btn">
<i class="fas fa-sign-in-alt me-2"></i>
Login Now
</a>
</div>
`;
}
const notifications = sampleNotifications || [];
const unreadCount = notifications.filter(n => n.unread).length;
let content = `
<div class="notification-header">
<h6 class="notification-title">
<i class="fas fa-bell me-2"></i>
Notifications
${unreadCount > 0 ? `<span class="notification-count">${unreadCount} new</span>` : ''}
</h6>
</div>
`;
if (notifications.length === 0) {
content += `
<div class="notification-empty">
<i class="fas fa-bell-slash"></i>
<h6>No Notifications</h6>
<p>You're all caught up! New notifications will appear here.</p>
</div>
`;
} else {
content += '<div class="notification-body">';
notifications.forEach(notification => {
content += `
<div class="notification-item ${notification.unread ? 'unread' : ''}" onclick="markAsRead(${notification.id})">
<div class="notification-icon ${notification.type}">
<i class="${notification.icon}"></i>
</div>
<div class="notification-content">
<p class="notification-text">${notification.text}</p>
<small class="notification-time">${notification.time}</small>
</div>
</div>
`;
});
content += '</div>';
}
if (notifications.length > 0) {
content += `
<div class="notification-footer">
<a href="/notifications">View All Notifications</a>
</div>
`;
}
return content;
}
// Close notification menu function
function closeNotificationMenu() {
if (notificationMenu) notificationMenu.classList.remove('show');
if (notificationOverlay) notificationOverlay.classList.remove('show');
}
// Open notification menu function
function openNotificationMenu() {
if (typeof closeLoginModal === 'function') {
closeLoginModal();
}
if (notificationMenu) notificationMenu.classList.add('show');
if (notificationOverlay) notificationOverlay.classList.add('show');
}
function initializeNotifications() {
// Get DOM elements
notificationBtn = document.getElementById('notificationBtn');
notificationMenu = document.getElementById('notificationMenu');
notificationOverlay = document.getElementById('notificationOverlay');
notificationBadge = document.getElementById('notificationBadge');
if (!notificationBtn || !notificationMenu) {
console.error('Notification elements not found');
return;
}
// Populate notification menu
notificationMenu.innerHTML = generateNotificationContent();
// Toggle notification dropdown
notificationBtn.addEventListener('click', function(e) {
e.preventDefault();
e.stopPropagation();
const isOpen = notificationMenu.classList.contains('show');
console.log('Notification button clicked, isOpen:', isOpen);
if (isOpen) {
closeNotificationMenu();
} else {
openNotificationMenu();
}
});
// Close notification menu when clicking outside
document.addEventListener('click', function(e) {
if (!notificationBtn.contains(e.target) && !notificationMenu.contains(e.target)) {
closeNotificationMenu();
}
});
// Close notification menu when clicking overlay
if (notificationOverlay) {
notificationOverlay.addEventListener('click', closeNotificationMenu);
}
// Close notification menu on escape key
document.addEventListener('keydown', function(e) {
if (e.key === 'Escape') {
closeNotificationMenu();
if (typeof closeLoginModal === 'function') {
closeLoginModal();
}
}
});
// Prevent notification menu from closing when clicking inside it
notificationMenu.addEventListener('click', function(e) {
e.stopPropagation();
});
}
// Profile dropdown functionality
function initializeProfile() {
const profileBtn = document.getElementById('profileBtn');
const profileMenu = document.getElementById('profileMenu');
if (!profileBtn) return;
if (!user) {
// For unauthenticated users, show login modal
profileBtn.addEventListener('click', function(e) {
e.stopPropagation();
if (typeof openLoginModal === 'function') {
openLoginModal();
}
});
} else {
// For authenticated users, use hover behavior (handled by CSS)
// Additional click handling for mobile
profileBtn.addEventListener('click', function(e) {
e.stopPropagation();
if (profileMenu) {
const isVisible = profileMenu.style.opacity === '1' || window.getComputedStyle(profileMenu).opacity === '1';
if (isVisible) {
profileMenu.style.opacity = '0';
profileMenu.style.visibility = 'hidden';
profileMenu.style.transform = 'translateY(10px)';
} else {
closeNotificationMenu();
if (typeof closeLoginModal === 'function') {
closeLoginModal();
}
profileMenu.style.opacity = '1';
profileMenu.style.visibility = 'visible';
profileMenu.style.transform = 'translateY(0)';
}
}
});
// Close profile menu when clicking outside (mobile)
document.addEventListener('click', function(e) {
if (window.innerWidth <= 768 && profileMenu && !profileBtn.contains(e.target) && !profileMenu.contains(e.target)) {
profileMenu.style.opacity = '0';
profileMenu.style.visibility = 'hidden';
profileMenu.style.transform = 'translateY(10px)';
}
});
}
}
// Login modal functionality
function initializeLoginModal() {
const loginModalOverlay = document.getElementById('loginModalOverlay');
const loginModal = document.getElementById('loginModal');
const closeLoginBtn = document.getElementById('closeLoginModal');
if (!loginModalOverlay) return; // Only for unauthenticated users
// Close login modal
window.closeLoginModal = function() {
loginModalOverlay.classList.remove('show');
};
// Open login modal
window.openLoginModal = function() {
closeNotificationMenu();
loginModalOverlay.classList.add('show');
};
// Close button
if (closeLoginBtn) {
closeLoginBtn.addEventListener('click', window.closeLoginModal);
}
// Close when clicking overlay
loginModalOverlay.addEventListener('click', function(e) {
if (e.target === loginModalOverlay) {
window.closeLoginModal();
}
});
// Prevent modal from closing when clicking inside
if (loginModal) {
loginModal.addEventListener('click', function(e) {
e.stopPropagation();
});
}
}
// Mark notification as read
function markAsRead(notificationId) {
if (!user || !sampleNotifications) return;
const notification = sampleNotifications.find(n => n.id === notificationId);
if (notification && notification.unread) {
notification.unread = false;
// Update badge count
const unreadCount = sampleNotifications.filter(n => n.unread).length;
if (notificationBadge) {
notificationBadge.textContent = unreadCount;
notificationBadge.style.display = unreadCount > 0 ? 'block' : 'none';
}
// Refresh notification content
if (notificationMenu) {
notificationMenu.innerHTML = generateNotificationContent();
}
// Send AJAX request to mark notification as read
fetch('/notifications/mark-read', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'X-CSRF-TOKEN': document.querySelector('meta[name="csrf-token"]').getAttribute('content')
},
body: JSON.stringify({
notification_id: notificationId
})
})
.then(response => response.json())
.then(data => {
if (data.success) {
console.log('Notification marked as read');
}
})
.catch(error => {
console.error('Error marking notification as read:', error);
// Revert the change if request failed
notification.unread = true;
const unreadCount = sampleNotifications.filter(n => n.unread).length;
if (notificationBadge) {
notificationBadge.textContent = unreadCount;
notificationBadge.style.display = unreadCount > 0 ? 'block' : 'none';
}
if (notificationMenu) {
notificationMenu.innerHTML = generateNotificationContent();
}
});
}
}
// Initialize when DOM is loaded
document.addEventListener('DOMContentLoaded', function() {
console.log('DOM loaded, initializing...');
initializeNotifications();
initializeProfile();
initializeLoginModal();
});
// Function to add new notification (for testing or real-time updates)
function addNewNotification(notification) {
if (user && sampleNotifications) {
sampleNotifications.unshift(notification);
// Update badge and content
if (notificationBadge) {
const unreadCount = sampleNotifications.filter(n => n.unread).length;
notificationBadge.textContent = unreadCount;
notificationBadge.style.display = unreadCount > 0 ? 'block' : 'none';
}
if (notificationMenu) {
notificationMenu.innerHTML = generateNotificationContent();
}
}
}
// Function to refresh notifications from server
function refreshNotifications() {
if (!user) return;
fetch('/notifications/get', {
method: 'GET',
headers: {
'Content-Type': 'application/json',
'X-CSRF-TOKEN': document.querySelector('meta[name="csrf-token"]').getAttribute('content')
}
})
.then(response => response.json())
.then(data => {
if (data.success && data.notifications) {
// Update notifications array
sampleNotifications.length = 0;
sampleNotifications.push(...data.notifications);
// Update UI
if (notificationBadge) {
const unreadCount = sampleNotifications.filter(n => n.unread).length;
notificationBadge.textContent = unreadCount;
notificationBadge.style.display = unreadCount > 0 ? 'block' : 'none';
}
if (notificationMenu) {
notificationMenu.innerHTML = generateNotificationContent();
}
}
})
.catch(error => {
console.error('Error refreshing notifications:', error);
});
}
// Auto-refresh notifications every 30 seconds if user is logged in
if (user) {
setInterval(refreshNotifications, 30000);
}
window.onload = function() {
try
{
const currentUrl = window.location.href;
if (currentUrl === "https://examprev.com/contribute-answer-with-examprev")
{
const branchSelect = document.getElementById('branchSelect');
const selectedBranch = branchSelect.value;
fetchQuestions(selectedBranch);
}
console.log("Page loaded successfully without errors.");
}
catch(error)
{
console.error("An error occurred:", error.message);
}
const csrfToken = document.querySelector('input[name="_token"]')?.value;
if (!csrfToken) {
console.error('CSRF token not found');
return;
}
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const formData = new FormData();
// Assuming csrf() is a function that returns the CSRF token.
formData.append('currentUrl', currentURL);
};
function scrollPagination(direction) {
const container = document.getElementById("paginationContainer");
const scrollAmount = 100; // Adjust scroll distance
container.scrollBy({ left: direction * scrollAmount, behavior: "smooth" });
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const container = document.getElementById("paginationContainer");
const activePage = document.querySelector(".custom-pagination-button.active");
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container.scrollLeft += (activePageRect.left - containerRect.left) - (container.offsetWidth / 2) + (activePage.offsetWidth / 2);
}
}
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document.addEventListener("DOMContentLoaded", ensureActivePageVisible);
document.querySelectorAll(".option").forEach(fieldset => {
fieldset.addEventListener("click", function () {
let questionId = this.getAttribute("data-question-id");
let messageElement = document.getElementById("message-" + questionId);
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if (document.querySelector(`[data-question-id='${questionId}'].correct`) || document.querySelector(`[data-question-id='${questionId}'].incorrect`)) {
return;
}
let legend = this.querySelector("legend");
legend.style.visibility = "visible";
legend.style.fontFamily = "'Poppins', sans-serif";
if (this.getAttribute("data-correct") === "true") {
this.classList.add("correct");
legend.innerText = "Correct";
legend.classList.add("correct-text");
messageElement.innerText = "Correct! π";
messageElement.style.color = "green";
} else {
this.classList.add("incorrect");
legend.innerText = "Incorrect";
legend.classList.add("incorrect-text");
messageElement.innerText = "Incorrect! β Try again.";
messageElement.style.color = "red";
// Highlight correct answers within the same question
document.querySelectorAll(`[data-question-id='${questionId}'][data-correct='true']`).forEach(correctOption => {
correctOption.classList.add("correct");
let correctLegend = correctOption.querySelector("legend");
correctLegend.style.visibility = "visible";
correctLegend.innerText = "Correct";
correctLegend.classList.add("correct-text");
});
}
});
});
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let adsLoaded = false;
function loadAdSense() {
if (adsLoaded) return;
adsLoaded = true;
var s = document.createElement("script");
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"https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-4999327676889242";
s.async = true;
s.crossOrigin = "anonymous";
document.head.appendChild(s);
}
// Load after page is fully loaded + 2 seconds
window.addEventListener("load", function () {
setTimeout(loadAdSense, 5000);
});
})();
(function () {
function updateVisitorCount(count) {
const el = document.getElementById("visitorCount");
if (!el) return;
el.innerHTML = "";
count.toString().split("").forEach(d => {
const s = document.createElement("span");
s.className = "digit";
s.textContent = d;
el.appendChild(s);
});
}
function loadVisitorCount() {
const csrf =
document.querySelector('meta[name="csrf-token"]')?.content ||
document.querySelector('input[name="_token"]')?.value;
if (!csrf) return;
const fd = new FormData();
fd.append("currentUrl", location.href);
fetch("/getVisitorCount", {
method: "POST",
headers: { "X-CSRF-TOKEN": csrf },
body: fd,
keepalive: true
})
.then(r => r.json())
.then(d => d?.count && updateVisitorCount(d.count))
.catch(() => {});
}
window.addEventListener("load", () => {
setTimeout(loadVisitorCount, 3000);
});
})();
</script></html>