tt_DAYNAME function

dynamic tt_DAYNAME(
  1. dynamic value
)

tt_DAYNAME(date): weekday name (returned in Chinese — this is a data value used by WML output, not a comment, so it is intentionally left untranslated; translating it would change the function's runtime behavior)

Implementation

dynamic tt_DAYNAME(dynamic value) {
  const names = ['週一', "週二", "週三", "週四", "週五", "週六", "週日"];
  final dt = _vToDateTime(value);
  if (dt == null) return '';
  return names[dt.weekday - 1];
}