在嵌套数组对象内的所有文档中添加一个字段

function addFieldToNestedArrayObjects(documents, fieldName, fieldValue) {
  for (let i = 0; i < documents.length; i++) {
    const document = documents[i];
    
    // 添加字段
    document[fieldName] = fieldValue;
    
    // 检查是否有更深层次的嵌套
    for (const key in document) {
      if (Array.isArray(document[key])) {
        addFieldToNestedArrayObjects(document[key], fieldName, fieldValue);
      }
    }
  }
}

// 示例数据
const nestedArrayObjects = [
  {
    id: 1,
    name: "Document 1",
    children: [
      {
        id: 2,
        name: "Child Document 1",
        grandchildren: [
          {
            id: 3,
            name: "Grandchild Document 1"
          },
          {
            id: 4,
            name: "Grandchild Document 2"
          }
        ]
      },
      {
        id: 5,
        name: "Child Document 2"
      }
    ]
  },
  {
    id: 6,
    name: "Document 2"
  }
];

// 添加字段到嵌套数组对象内的所有文档
addFieldToNestedArrayObjects(nestedArrayObjects, "newField", "newFieldValue");

console.log(nestedArrayObjects);