非标
此特征是非标准的,且不在标准轨道中。不要在面向 Web 的生产站点中使用它:它不适用于每个用户。实现之间可能存在大的不兼容性,且行为将来可能改变。

摘要

getMetadata method allows to retrieve some metadata about the locked file.

句法

var request = instanceOfLockedFile.getMetadata(param);
					

参数

param 可选
An object used to request specific metadata. Each key is a boolean where true means the metadata is expected and where false means it is not expected. Note that if the key is undefined , it is considered as if it were true . The following metadata are supported:
  • size : will provide the size of the file
  • lastModified : will provide the date when the file was last modified

返回

A FileRequest object. In case of success, the request's result is an object with the metadata requested through the param object. They have the following format:

  • size : a number
  • lastModified 日期 对象

规范

规范 状态 注释
FileSystem API 编者草案 Draft proposal

另请参阅

元数据

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