detect end of scrolling

[vAhyThe]

How is there some callback when i finished my scroll

i have

// console.log(element.scrollLeft)  = 0
element.scrollBy({ top: 0, left: -984, behavior: 'smooth' })
// console.log(element.scrollLeft)  = 0

it is possible add some callback ?? thx

[schwigri]

Here is what I usually do for scrolling to certain positions. You may be able to adjust it to use element.scrollBy() instead of window.scrollTo()

function scrollTo(position) {
  return new Promise(resolve => {
    const scrollListener = e => {
      if ('undefined' === typeof e) {
        return;
      }
      const target = e.currentTarget;
      if (target.scrollTop === position) {
        target.removeEventListener('scroll', scrollListener);
        resolve();
      }
    };
    window.addEventListener('scroll', scrollListener);
    window.scrollTo({
      top: position,
      behavior: 'smooth',
    });
  });
}

scrollTo(element.offsetTop).then(() => {
  // Do something
});