Useful String and Date extensions

String+Date.swift

import Foundation

extension String {
    func toDate(format: String) -> Date? {
        let formatter = DateFormatter()
        formatter.dateFormat = format
        return formatter.date(from: self)
    }
}

extension Date {
    func toRelativeLocalizeString() -> String {
        let formatter = RelativeDateTimeFormatter()
        formatter.unitsStyle = .full
        let relativeDate = formatter.localizedString(for: self, relativeTo: Date())
        return relativeDate
    }
}