Getting month by Index, Swift?-CodePudding

I'm trying to extract month array from Gregorian Calendar. Extracting weekday is easily done by following method.

public static func getWeekDay(_ dayIndex: Int) -> String {
    Calendar(identifier: .gregorian).weekdaySymbols[dayIndex]
} // dayIndex 0 will return Sun

But this time I want to do the same for Month. I'm expecting an array like this ["Jan", "Feb", "Mar", .... "Dec"]. But all I got is "M01" , "M02".... etc.

po Calendar(identifier: .gregorian).monthSymbols
▿ 12 elements
  - 0 : "M01"
  - 1 : "M02"
  - 2 : "M03"
  - 3 : "M04"
  - 4 : "M05"
  - 5 : "M06"
  - 6 : "M07"
  - 7 : "M08"
  - 8 : "M09"
  - 9 : "M10"
  - 10 : "M11"
  - 11 : "M12"

It goes the same for standaloneMonthSymbols and shortMonthSymbols. And veryShortStandaloneMonthSymbols returns ["1", "2", "3", "4" ..., "12]. Any Idea for ["Jan", "Feb", "Dec"]?

CodePudding user response：

monthSymbols will return a list of months in the calendar, localized to the Calendar’s locale. By default, Calendars have no locale set. If you wish to receive a localized answer, be sure to set the locale.

public func getMonths() -> [String] {
    var cal = Calendar(identifier: .gregorian)
    cal.locale = Locale(identifier: "en_US_POSIX")
    return cal.monthSymbols
}

print(getMonths()) // -> ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]

If u want short month symbols use return cal.shortMonthSymbols.

Update :

If you use Locale(identifier: "en_US_POSIX") it will always return the result in a English as mentioned above. Using Locale.current instead of that will return a localized output for users depend on where they are.

eg : Assume a scenario where Lacale.current = Locale(identifier: "fr_FR"), then the result would be -> ["janvier", "février", "mars", "avril", "mai", .......