Function getPosition

packages/react-aria/src/utils/useDrag1D.ts:61–61

    onCollapseToggle
  } = props;
  let getPosition = e => (orientation === 'horizontal' ? e.clientX : e.clientY);
  let getNextOffset = (e: MouseEvent) => {
    let containerOffset = getOffset(containerRef.current, reverse, orientation);
    let mouseOffset = getPosition(e);