# FileSystemManager.close(Object object)

Start from base library version 2.16.1. Please remaining backward compatible.

with Promise style call: Not supported

Mini Program plugin: Support, need to Mini Program base library version no less than 2.19.2

Close file

# parameter

# Object object

attribute	type	Required	Introductions
fd	string	yes	File descriptor that needs to be closed. fd adopt FileSystemManager.open or FileSystemManager.openSync Interface acquisition
success	function	no	Interface calls the successful callback function
fail	function	no	Interface calls failed callback functions
complete	function	no	Callback function at the end of an interface call (both successful and unsuccessful calls are executed)

# object.fail callback

# parameter

# Object res

attribute	type	Introductions
errMsg	string	Error message

res.errMsg Legal value

value	Introductions	Minimum version
bad file descriptor	Invalid file descriptor

# sample code

const fs = wx.getFileSystemManager()
// Open the file
fs.open({
  filePath: `${wx.env.USER_DATA_PATH}/hello.txt`, 
  flag: 'a+',
  success(res) {
    // Close file
    fs.close({
      fd: res.fd
    })
  }
})