title: Get elements in the path of a touch event
body: <p>I have a grid of squares. I want the user to be able to touch and move across the grid, and each square to change colour when the touch goes over it.</p>
  
  <p>I've looked at <code>onTouchStart</code>, <code>onTouchMove</code> and <code>onTouchEnd</code>. Using <code>onTouchMove</code>, the <code>event.target</code> is always the element where the touch began.</p>
  
  <p>How can I find the elements that are moved over with the touch?</p>
  
  <p><a href="https://jsfiddle.net/abby_io/mtq6xfx4/22/" rel="nofollow noreferrer">JSFiddle</a></p>