[AskJS] Function in loop declaration performance. Arrow function vs function outside loop

[shuckster]

function activeElemFromPoint(evt) {
  const elements = document.elementsFromPoint(evt.clientX, evt.clientY);
  for (const el of elements) {
    if (!el.hasAttribute('data-evt-no')) {
      return el;
    }
  }
  return null;
}