返回对象数组中对象数组中的项

function flattenNestedArray(nestedArray) {
  let result = [];

  function flatten(item) {
    if (Array.isArray(item)) {
      for (let i = 0; i < item.length; i++) {
        flatten(item[i]);
      }
    } else {
      result.push(item);
    }
  }

  flatten(nestedArray);
  return result;
}

// 示例使用
const nestedObjects = [
  { id: 1, children: [{ id: 2 }, { id: 3, children: [{ id: 4 }] }] },
  { id: 5 }
];

const flattenedItems = flattenNestedArray(nestedObjects.map(obj => obj.children).flat());
console.log(flattenedItems); // 输出: [ { id: 2 }, { id: 3 }, { id: 4 }, { id: 5 } ]