Wheeling code

script.js

window.addEventListener("wheel", event => {
  const delta = Math.sign(event.deltaY);
  //console.info(delta);
  if (delta > 0) {
    nextSection();
  }
  else if (delta < 0) {
    previousSection();
  }
});

const sections = document.querySelectorAll(".section");
let activeIndex = 0;

function nextSection() {
  console.log('this', activeIndex)
  if (activeIndex = sections.length) return;
  let previousService = section[activeIndex - 1];
  previousService.classList.add("previous");
  let activeService = section[activeIndex];
  activeService.classList.add("inView");
  let nextService = section[activeIndex + 1];
  nextService.classList.add("next");
  activeIndex++;
  //update the above variables
}