toWeekday method
get weekDay By Milliseconds 根据时间戳获取工作日
Implementation
String? toWeekday(
{bool isUtc = false, String? languageCode, bool short = false}) {
final DateTime dateTime = toDatetime(isUtc: isUtc);
return dateTime.formattedWeekday(languageCode: languageCode, short: short);
}