Write a program to reverse a string in JavaScript
// Program to reverse a string
let slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
let i;
let slides = document.getElementsByClassName("mySlides");
let dots = document.getElementsByClassName("demo");
let captionText = document.getElementById("caption");
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
captionText.innerHTML = dots[slideIndex-1].alt;
}
window.addEventListener('DOMContentLoaded', () => {
const uploadDate = new Date(document.getElementById('video-date').textContent);
const today = new Date();
let yearsDiff = today.getFullYear() - uploadDate.getFullYear();
// Adjust if the current date is before the upload date's month/day
const monthDiff = today.getMonth() - uploadDate.getMonth();
const dayDiff = today.getDate() - uploadDate.getDate();
if (monthDiff < 0 || (monthDiff === 0 && dayDiff < 0)) {
yearsDiff--;
}
document.getElementById('years-count').textContent =
yearsDiff + ' year' + (yearsDiff !== 1 ? 's' : '');
});
let counter = parseInt(localStorage.getItem("persistentCount")) || 26000000000;
const counterElement =document.getElementById("live-counter");
function updateCounter() {
counter++;
counterElement.textContent = counter.toLocaleString();
localStorage.setItem("persistentCount", counter);
setTimeout(updateCounter, 500); // adjust interval as needed
}
document.addEventListener("DOMContentLoaded", updateCounter);
var coll = document.getElementsByClassName("collapsible");
var i;
for (i = 0; i < coll.length; i++) {
coll[i].addEventListener("click", function() {
this.classList.toggle("active");
var content = this.nextElementSibling;
if (content.style.maxHeight){
content.style.maxHeight = null;
} else {
content.style.maxHeight = content.scrollHeight + "px";
}
});
}