getLocaleWeekEndRange
function
Range of week days that are considered the week-end for the given locale.
getLocaleWeekEndRange(locale: string): [WeekDay, WeekDay]
 Parameters
  locale  |  string |    A locale code for the locale format rules to use.  |  
Returns
[WeekDay, WeekDay]: The range of day values, [startDay, endDay].
See also
    © 2010–2019 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
    https://v7.angular.io/api/common/getLocaleWeekEndRange