Unreviewed
First weekday for a locale, 1=Monday … 7=Sunday (matches Temporal's dayOfWeek). Reads Intl.Locale#getWeekInfo() (or the weekInfo getter on engines that expose it that way); falls back to Monday — never hard-codes Sunday.
1
7
dayOfWeek
Intl.Locale#getWeekInfo()
weekInfo
First weekday for a locale,
1=Monday …7=Sunday (matches Temporal'sdayOfWeek). ReadsIntl.Locale#getWeekInfo()(or theweekInfogetter on engines that expose it that way); falls back to Monday — never hard-codes Sunday.