on mousewheel vanilla js scroll horizontally #js

script.js

document.addEventListener('wheel', function(e)
                          {
  if(e.type != 'wheel')
  {
    return;
  }
  let delta = ((e.deltaY || -e.wheelDelta || e.detail) >> 10) || 1;
  delta = delta * (-300);
  document.documentElement.scrollLeft -= delta;    
  e.preventDefault();
});