Convert Es5 to ES6 javascript.

Arrow Functions

Convert Es5 to ES6 javascript.

let slideIndex = 1; 
showSlides(slideIndex);

let plusSlides = (n) => showSlides(slideIndex += n);

let currentSlide = (n) =>  showSlides(slideIndex = n);

function showSlides(n) {
   let i;
   let slides = document.getElementsByClassName("mySlides");
   let 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";
}