Javascript - scrollTo()

scroll-to.js

function scrollTo({ element = window, top = 0, left = 0, behavior = 'smooth' }) {
  return new Promise((res) => {
    const onScroll = function() {
      // @ts-ignore
      const scrollTop = element.scrollTop

      if (scrollTop === top) {
        element.removeEventListener('scroll', onScroll)
        res();
      }
    }
    element.addEventListener('scroll', onScroll)
    onScroll();
    element.scrollTo({
      top,
      left,
      // @ts-ignore
      behavior
    })
  });
}