Typescript -查询或展平嵌套数组，但将某些对象保留为嵌套对象

function flattenArray(arr: any[]): any[] {
  const result: any[] = [];

  arr.forEach(item => {
    if (Array.isArray(item)) {
      result.push(...flattenArray(item));
    } else if (typeof item === 'object') {
      result.push(flattenObject(item));
    } else {
      result.push(item);
    }
  });

  return result;
}

function flattenObject(obj: object): object {
  const result: any = {};

  for (const key in obj) {
    if (typeof obj[key] === 'object') {
      result[key] = flattenObject(obj[key]);
    } else {
      result[key] = obj[key];
    }
  }

  return result;
}

const nestedArray = [1, [2, [3, 4]], { a: 5, b: { c: 6 } }];
const flattenedArray = flattenArray(nestedArray);
console.log(flattenedArray);