nicodioso

extension Date {
    
    /// Note: Any duplicate found from 2 components will return nil
    func combine(_ date1Comp: Set<Calendar.Component>, with date2: Date, components date2Comp: Set<Calendar.Component>) -> Date? {
        
        // Check if has duplicates
        let date1CompDict: [Calendar.Component: Bool] = {
            var dict: [Calendar.Component: Bool] = [:]
            date1Comp.forEach{ dict[$0] = true }