Using momentJs, is possible to get the first day of the week (Monday(1), Sunday(7)...) based on Locale without creating a new moment?

I know I can access what is the first day of the week for the current locale with:

moment.locale('uk');

moment().startOf('week').isoWeekday(); //Returns 1

moment.locale('en');

moment().startOf('week').isoWeekday(); //Returns 7

But I think it's a bit ugly...

1. Creating a momentjs object.


2. Going to the first date of the week.


3. Resolving the weekDay.

Any better idea?
Thx!