avoid_classes_with_only_static_members.md

Pattern: Use of class with only static members

Issue: -

Description

Creating classes with the sole purpose of providing utility or otherwise static methods is discouraged. Dart allows functions to exist outside of classes for this very reason.

Example of incorrect code:

class DateUtils {
 static DateTime mostRecent(List<DateTime> dates) {
  return dates.reduce((a, b) => a.isAfter(b) ? a : b);
 }
}

class _Favorites {
 static const mammal = 'weasel';
}

Example of correct code:

DateTime mostRecent(List<DateTime> dates) {
 return dates.reduce((a, b) => a.isAfter(b) ? a : b);
}

const _favoriteMammal = 'weasel';

Further Reading

• Linter for Dart - avoid_classes_with_only_static_members