Demonstrates localized NSDateFormatter behaviour

LocalizedFormatting.playground

//: Playground - noun: a place where people can play

import UIKit

let date = NSDate()
let number = 29.23
let heightInm = 1.87

let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "yyyy"

print("default locale: \(dateFormatter.locale.localeIdentifier)")

print(dateFormatter.stringFromDate(NSDate()))

let numberFormatter = NSNumberFormatter()
numberFormatter.maximumFractionDigits = 2
let currencyFormatter = NSNumberFormatter()
currencyFormatter.numberStyle = NSNumberFormatterStyle.CurrencyStyle
let localizedDateFormatter = NSDateFormatter()
localizedDateFormatter.dateFormat = NSDateFormatter.dateFormatFromTemplate("yyyy", options: 0,
    locale: NSLocale.currentLocale())
let lengthFormatter = NSLengthFormatter()
lengthFormatter.forPersonHeightUse = true


//current locale, saudi arabia, urdu/india
let locales = [NSLocale.currentLocale().localeIdentifier, "de_DE", "ar_SA", "ur_IN", "zh_HANS"]
var years = [String]()
var numbers = [String]()
var moneys = [String]()
var bodyHeights = [String]()


for localeID in locales {
    //even better, with dateFormatFromTemplate
    localizedDateFormatter.locale = NSLocale(localeIdentifier: localeID)
    numberFormatter.locale = NSLocale(localeIdentifier: localeID)
    lengthFormatter.numberFormatter.locale = NSLocale(localeIdentifier: localeID)
    currencyFormatter.locale = NSLocale(localeIdentifier: localeID)
    
    years += [localizedDateFormatter.stringFromDate(date)]
    numbers += [numberFormatter.stringFromNumber(number) ?? ""]
    moneys += [currencyFormatter.stringFromNumber(number) ?? ""]
    bodyHeights += [lengthFormatter.stringFromMeters(heightInm)]
    
}

print(years)        //"["2016", "2016", "١٤٣٧", "۲۰۱۶", "2016"]"
print(numbers)      //"["29.23", "29,23", "٢٩٫٢٣", "۲۹.۲۳", "29.23"]"
print(bodyHeights)  //"["6 ft, 1.622 in", "187 cm", "١٨٧ سم", "۱۸۷ سینٹی میٹر", "187厘米"]\n"
print(moneys)       //"["$29.23", "29,23 €", "٢٩٫٢٣ ر.س.‏", "₹ ۲۹.۲۳", "¤ 29.23"]\n"