fs.opendir(path[, options], callback)

• path <string> | <Buffer> | <URL>
• options <Object>
  • encoding <string> | <null> 默认值: 'utf8'
  • bufferSize <number> 当从目录读取时，在内部缓冲的目录条目数。 值越大，性能越好，但内存使用率越高。 默认值: 32
• callback <Function>
  • err <Error>
  • dir <fs.Dir>

异步地打开目录。 有关更多详细信息，请参阅 POSIX opendir(3) 文档。

创建 <fs.Dir>，其中包含用于从目录读取和清理目录的所有进一步的函数。

encoding 选项设置在打开目录和随后的读取操作时 path 的编码。

• path <string> | <Buffer> | <URL>
• options <Object>
  • encoding <string> | <null> Default: 'utf8'
  • bufferSize <number> Number of directory entries that are buffered internally when reading from the directory. Higher values lead to better performance but higher memory usage. Default: 32
• callback <Function>
  • err <Error>
  • dir <fs.Dir>

Asynchronously open a directory. See the POSIX opendir(3) documentation for more details.

Creates an <fs.Dir>, which contains all further functions for reading from and cleaning up the directory.

The encoding option sets the encoding for the path while opening the directory and subsequent read operations.