I have slider with right left click button and its sliding fine but not smooth sliding and I would like to auto slide my banner images with 4-5 sec duration, I have not found any tutorial how to make it auto slide, please check my script.
<script>
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
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";
}
</script>I understand there are two questions:
How can I make it smoother?
That'd have to do with choosing a 'transitionable' CSS property instead of display, such as transform. See example: https://codepen.io/d88naimi/pen/YzzOQPB
Auto sliding could be achieved by setting an interval at which you'd run the active slide setting function. See: https://www.w3schools.com/jsref/met_win_setinterval.asp
Hope it helps. Enjoy the process.