narrowWeekDays property
Very short names for days of the week, starting with Sunday, e.g. 'Su'.
Implementation
List<String> get narrowWeekDays => (localeName == '' || localeName.startsWith('en'))
? const ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa']
: DateFormat.yMMMMd(localeName).dateSymbols.STANDALONENARROWWEEKDAYS;