Date#strftime

Ruby-like strftime for javascript, because date-formatting is a pain. Fully spec'd!

NOTE: Quasi-beta – the following formats still need to be implemented: %W, and %Z.

Example

Simple example:

> var date = new Date("June 7, 2009 16:05:01");
> date.strftime("%Y.%m/%d");
2009.06/07

> date.strftime('%Y-%m-%d %H:%M:%S'); // SQL
2009-06-07 16:05:01

Formatting

Same as ruby:

%a - The abbreviated weekday name (``Sun'')
%A - The  full  weekday  name (``Sunday'')
%b - The abbreviated month name (``Jan'')
%B - The  full  month  name (``January'')
%c - The preferred local date and time representation
%d - Day of the month (01..31)
%e - Day of the month without leading zeroes (1..31)
%H - Hour of the day, 24-hour clock (00..23)
%I - Hour of the day, 12-hour clock (01..12)
%j - Day of the year (001..366)
%k - Hour of the day, 24-hour clock w/o leading zeroes (0..23)
%l - Hour of the day, 12-hour clock w/o leading zeroes (1..12)
%m - Month of the year (01..12)
%M - Minute of the hour (00..59)
%p - Meridian indicator (``AM''  or  ``PM'')
%P - Meridian indicator (``am''  or  ``pm'')
%S - Second of the minute (00..60)
%U - Week  number  of the current year,
     starting with the first Sunday as the first
     day of the first week (00..53)
%W - Week  number  of the current year,
     starting with the first Monday as the first
     day of the first week (00..53)
%w - Day of the week (Sunday is 0, 0..6)
%x - Preferred representation for the date alone, no time
%X - Preferred representation for the time alone, no date
%y - Year without a century (00..99)
%Y - Year with century
%Z - Time zone name
%z - Time zone expressed as a UTC offset (``-04:00'')
%% - Literal ``%'' character

Author

Gianni Chiappetta – gf3.ca

Contributions by: Anton Mironov