在此页

• 摘要
• 特性
• 方法
• 规范
• 另请参阅
• 相关话题

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

FileRequest interface extends the DOMRequest interface to provide some extra properties necessary for the LockedFile 对象。

特性

FileRequest.lockedFile 只读

LockedFile object from which the request was started.

FileRequest.onprogress

A callback handler called repeatedly while the operation represented by the FileRequest is in progress.

FileRequest interface also inherits from the DOMRequest 接口。

DOMRequest.onsuccess

A callback handler called when the operation represented by the DOMRequest is completed.

DOMRequest.onerror

A callback handler that gets called when an error occurs while processing the operation.

DOMRequest.readyState

A string indicating whether or not the operation is finished running. Its value is either "done" or "pending".

DOMRequest.result

The operation's result.

DOMRequest.error

Error information, if any.

方法

None.

规范

规范	状态	注释
FileSystem API	编者草案	Draft proposal.

另请参阅

• FileHandle
• LockedFile

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. 文件和目录条目 API
2. FileRequest
3. 特性

   1. lockedFile
   2. onprogress
4. 事件

   1. error
   2. writeend
5. 文件系统 API 相关页面

   1. FileError
   2. FileException
   3. FileHandle
   4. FileSystem
   5. FileSystemDirectoryEntry
   6. FileSystemDirectoryEntrySync
   7. FileSystemDirectoryReader
   8. FileSystemDirectoryReaderSync
   9. FileSystemEntry
   10. FileSystemEntrySync
   11. FileSystemFileEntry
   12. FileSystemFileEntrySync
   13. FileSystemFlags
   14. FileSystemSync
   15. HTMLInputElement
   16. LocalFileSystem
   17. LocalFileSystemSync
   18. LockedFile
   19. 元数据
   20. Window.requestFileSystem()
   21. Window.resolveLocalFileSystemURL()
   22. WorkerGlobalScope.requestFileSystemSync()