Delete File in Dart

Introduction

In this section, you will learn how to delete file in dart programming language using File class and deleteSync() method.

Delete File In Dart

Assume that you have a file named test.txt in the same directory of your dart program. Now, let’s delete it.

// dart program to delete file
import 'dart:io';

void main() {
  // open file
  File file = File('test.txt');
  // delete file
  file.deleteSync();
  print('File deleted.');
}

Show Output

Info

Note: If you try to delete a file that does not exist, then it will throw an exception.

Delete File If Exists

You can use File.existsSync() method to check if a file exists or not. If it exists, then you can delete it.

// dart program to delete file if exists
import 'dart:io';

void main() {
  // open file
  File file = File('test.txt');
  // check if file exists
  if (file.existsSync()) {
    // delete file
    file.deleteSync();
    print('File deleted.');
  } else {
    print('File does not exist.');
  }
}

Show Output

Video

Watch our video on file delete in Dart.