如何获取指定层级DOM元素相对于上层DOM的left和top属性？

<div class="wrapper" id="wrapper">
    <div id="node-root">
        <div id="node-2">
            <div id="node-3"></div>
            <div id="node-3-1"></div>
            <div id="node-3-2"></div>
        </div>
        <div id="node-22">
            <div id="node-22-1"></div>
        </div>
        <div id="node-33">
            <div id="node-33-1"></div>
        </div>
    </div>
</div>

/**
 * 计算元素相对于文档的偏移量
 * @param {HTMLElement} ele DOM元素
 * @returns {{top: number, left: number}}
 */
function offset(ele) {
  let position = { top: 0, left: 0 };
  if (!ele || ele.nodeType !== 1) return position;
  let offsetParent = ele.offsetParent;
  position.top = ele.offsetTop;
  position.left = ele.offsetLeft;
  while (offsetParent) {
    position.top += offsetParent.offsetTop;
    position.left += offsetParent.offsetLeft;
    offsetParent = offsetParent.offsetParent;
  }
  return position;
}

/**
 * 计算元素相对于指定父元素的偏移量
 * @param {HTMLElement} ele DOM元素
 * @param {HTMLElement} boundaryParent 父元素
 * @returns {{top: number, left: number}}
 */
function offsetInParent(ele, boundaryParent) {
  let position = { top: 0, left: 0 };
  let elOffset = offset(ele);
  let parentOffset = offset(boundaryParent) || { top: 0, left: 0 };
  position.top = elOffset.top - parentOffset.top;
  position.left = elOffset.left - parentOffset.left;
  return position;
}

console.log(offsetInParent(document.getElementById('node-22-1'), document.getElementById('wrapper')));