Format Dart file use it self-CodePudding

We know we can format the dart code by command line like:

but how to format dart file by dart code?

like DartFormater.format(str);

CodePudding user response：

The dart format command line tool uses the dart_style package.

You can add the package as a dependency in your pubspec.yaml.

dependencies:
  dart_style: ^2.2.4

You can use the formatter in your code like so:

import 'package:dart_style/dart_style.dart';

const String str = '''
void    main( )   {  
      print
      ('hello world!'
      );
   }
''';

void main() {
  print(DartFormatter().format(str));
}

This will print out the formatted string below:

void main() {
  print('hello world!');
}