How do I find the number of days in given month and year using swift

Question

I want to find the total number days on given month and year. Example: I want to find total number of days on year = 2015, month = 7

Answer 1

In extension format, using self to be able to return the number of days more dynamically (Swift 3).

extension Date {

func getDaysInMonth() -> Int{
    let calendar = Calendar.current

    let dateComponents = DateComponents(year: calendar.component(.year, from: self), month: calendar.component(.month, from: self))
    let date = calendar.date(from: dateComponents)!

    let range = calendar.range(of: .day, in: .month, for: date)!
    let numDays = range.count

    return numDays
}

}