Formatting a JavaScript date in modern browsers

In modern browsers, Date.prototype.toLocaleDateString() allows you to define the formatting of a Date in a convenient manner.

It requires the following format :

dateObj.toLocaleDateString([locales [, options]])

The locales parameter should be a string with a BCP 47 language tag, or an array of such strings.

The options parameter should be an object with some or all of the following properties:

localeMatcher : possible values are "lookup" and "best fit"; the default is "best fit"
timeZone : the only value implementations must recognize is "UTC"; the default is the runtime’s default time zone
hour12 :possible values are true and false; the default is locale dependent
formatMatcher : possible values are "basic" and "best fit"; the default is "best fit"
weekday : possible values are "narrow", "short" & "long"
era : possible values are "narrow", "short" & "long"
year : possible values are "numeric" & "2-digit"
month : possible values are "numeric", "2-digit", "narrow", "short" & "long"
day : possible values are "numeric" & "2-digit"
hour : possible values are "numeric" & "2-digit"
minute : possible values are "numeric" & "2-digit"
second : possible values are "numeric" & "2-digit"
timeZoneName : possible values are "short" & "long"