Demonstrate DateTimeFormat options for a variety of Locales

datetimeformat.js

/**
 * Requires the most current version of Chrome Canary
 * 
 * Demonstrates out of:
 * 
 *     v8Intl.DateTimeFormat([ locale ], options ).format()
 * 
 *
 */



var locales, dtfProps;

locales = [
  "en",
  "de",
  "es",
  "jp",
  "ar",
  "fr",
  "ko"
];

dtfProps = {
  weekday:      [ "narrow", "short", "long" ],
  era:          [ "narrow", "short", "long" ],
  year:         [ "2-digit", "numeric" ],
  month:        [ "2-digit", "numeric", "narrow", "short", "long" ],
  day:          [ "2-digit", "numeric" ],
  hour:         [ "2-digit", "numeric" ],
  minute:       [ "2-digit", "numeric" ],
  second:       [ "2-digit", "numeric" ],
  timeZoneName: [ "short", "long" ]
};


locales.forEach(function( locale ) {
  console.group( locale );

  Object.keys( dtfProps ).forEach(function( prop ) {
    var allowables = this[ prop ];

    console.group( "\t" + prop );

    allowables.forEach(function( allow ) {
      var options = {};


      options[ prop ] = allow;

      console.log( "\t\t" + allow + ": " +
        v8Intl.DateTimeFormat([ locale ], options ).format()
      );

    });

    console.groupEnd( "\t" + prop );

  }, dtfProps );

  console.groupEnd( locale );
});

result

en
	weekday
		narrow: M
		short: Mon
		long: Monday
	era
		narrow: 5/21/2012 A
		short: 5/21/2012 AD
		long: 5/21/2012 Anno Domini
	year
		2-digit: 12
		numeric: 2012
	month
		2-digit: 05
		numeric: 5
		narrow: M
		short: May
		long: May
	day
		2-digit: 21
		numeric: 21
	hour
		2-digit: 1 PM
		numeric: 1 PM
	minute
		2-digit: 1
		numeric: 1
	second
		2-digit: 17
		numeric: 17
	timeZoneName
		short: 5/21/2012 PT
		long: 5/21/2012 GMT-07:00
de
	weekday
		narrow: M
		short: Mo.
		long: Montag
	era
		narrow: 21.5.2012 n. Chr.
		short: 21.5.2012 n. Chr.
		long: 21.5.2012 n. Chr.
	year
		2-digit: 12
		numeric: 2012
	month
		2-digit: 05
		numeric: 5
		narrow: M
		short: Mai
		long: Mai
	day
		2-digit: 21
		numeric: 21
	hour
		2-digit: 13 Uhr
		numeric: 13 Uhr
	minute
		2-digit: 1
		numeric: 1
	second
		2-digit: 17
		numeric: 17
	timeZoneName
		short: 21.5.2012 Vereinigte Staaten (Los Angeles)
		long: 21.5.2012 GMT-07:00
es
	weekday
		narrow: L
		short: lun
		long: lunes
	era
		narrow: 21/5/2012 d.C.
		short: 21/5/2012 d.C.
		long: 21/5/2012 anno Dómini
	year
		2-digit: 12
		numeric: 2012
	month
		2-digit: 05
		numeric: 5
		narrow: M
		short: may
		long: mayo
	day
		2-digit: 21
		numeric: 21
	hour
		2-digit: 13
		numeric: 13
	minute
		2-digit: 1
		numeric: 1
	second
		2-digit: 17
		numeric: 17
	timeZoneName
		short: 21/5/2012 PT
		long: 21/5/2012 GMT-07:00
jp
	weekday
		narrow: M
		short: Mon
		long: Monday
	era
		narrow: 5/21/2012 A
		short: 5/21/2012 AD
		long: 5/21/2012 Anno Domini
	year
		2-digit: 12
		numeric: 2012
	month
		2-digit: 05
		numeric: 5
		narrow: M
		short: May
		long: May
	day
		2-digit: 21
		numeric: 21
	hour
		2-digit: 1 PM
		numeric: 1 PM
	minute
		2-digit: 1
		numeric: 1
	second
		2-digit: 17
		numeric: 17
	timeZoneName
		short: 5/21/2012 PT
		long: 5/21/2012 GMT-07:00
ar
	weekday
		narrow: ن
		short: إثنين
		long: الإثنين
	era
		narrow: ٢١‏/٥‏/٢٠١٢ م
		short: ٢١‏/٥‏/٢٠١٢ م
		long: ٢١‏/٥‏/٢٠١٢ ميلادي
	year
		2-digit: ١٢
		numeric: ٢٠١٢
	month
		2-digit: ٠٥
		numeric: ٥
		narrow: و
		short: مايو
		long: مايو
	day
		2-digit: ٢١
		numeric: ٢١
	hour
		2-digit: ١ م
		numeric: ١ م
	minute
		2-digit: ١
		numeric: ١
	second
		2-digit: ١٧
		numeric: ١٧
	timeZoneName
		short: ٢١‏/٥‏/٢٠١٢ الولايات المتحدة الأمريكية (لوس انجلوس)
		long: ٢١‏/٥‏/٢٠١٢ جرينتش-٠٧:٠٠
fr
	weekday
		narrow: L
		short: lun.
		long: lundi
	era
		narrow: 21/5/2012 ap. J.-C.
		short: 21/5/2012 ap. J.-C.
		long: 21/5/2012 après Jésus-Christ
	year
		2-digit: 12
		numeric: 2012
	month
		2-digit: 05
		numeric: 5
		narrow: M
		short: mai
		long: mai
	day
		2-digit: 21
		numeric: 21
	hour
		2-digit: 13
		numeric: 13
	minute
		2-digit: 1
		numeric: 1
	second
		2-digit: 17
		numeric: 17
	timeZoneName
		short: 21/5/2012 États-Unis (Los Angeles)
		long: 21/5/2012 UTC-07:00
ko
	weekday
		narrow: 월
		short: 월
		long: 월요일
	era
		narrow: 2012년 5월 21일 서기
		short: 2012년 5월 21일 서기
		long: 2012년 5월 21일 서력기원
	year
		2-digit: 12년
		numeric: 2012년
	month
		2-digit: 05월
		numeric: 5월
		narrow: 5월
		short: 5월
		long: 5월
	day
		2-digit: 21일
		numeric: 21일
	hour
		2-digit: 오후 1시
		numeric: 오후 1시
	minute
		2-digit: 1
		numeric: 1
	second
		2-digit: 18
		numeric: 18
	timeZoneName
		short: 2012년 5월 21일 미국 (로스앤젤레스)
		long: 2012년 5월 21일 GMT-07:00