# 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 Default values 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
  filePath: `${wx.env.USER_DATA_PATH}/hello.txt`, 
  flag: 'a+',
  success(res) {
    // Close file
      fd: res.fd