This method is equivalent to new_start(Date::ITALY).
Returns the day of the month (1..31) for time.
t = Time.now #=> 2007-11-19 08:27:03 -0600 t.day #=> 19 t.mday #=> 19
Returns the day of the month (1..31) for time.
t = Time.now #=> 2007-11-19 08:27:03 -0600 t.day #=> 19 t.mday #=> 19
Returns an integer representing the day of the week, 0..6, with Sunday == 0.
t = Time.now #=> 2007-11-20 02:35:35 -0600 t.wday #=> 2 t.sunday? #=> false t.monday? #=> false t.tuesday? #=> true t.wednesday? #=> false t.thursday? #=> false t.friday? #=> false t.saturday? #=> false
Returns an integer representing the day of the year, 1..366.
t = Time.now #=> 2007-11-19 08:32:31 -0600 t.yday #=> 323
Returns true if time represents Sunday.
t = Time.local(1990, 4, 1) #=> 1990-04-01 00:00:00 -0600 t.sunday? #=> true
Returns true if time represents Monday.
t = Time.local(2003, 8, 4) #=> 2003-08-04 00:00:00 -0500 t.monday? #=> true
Returns true if time represents Tuesday.
t = Time.local(1991, 2, 19) #=> 1991-02-19 00:00:00 -0600 t.tuesday? #=> true
Returns true if time represents Wednesday.
t = Time.local(1993, 2, 24) #=> 1993-02-24 00:00:00 -0600 t.wednesday? #=> true
Returns true if time represents Thursday.
t = Time.local(1995, 12, 21) #=> 1995-12-21 00:00:00 -0600 t.thursday? #=> true
Returns true if time represents Friday.
t = Time.local(1987, 12, 18) #=> 1987-12-18 00:00:00 -0600 t.friday? #=> true
Time
This form accepts a Time object time and optional keyword argument in:
Time.at(Time.new) # => 2021-04-26 08:52:31.6023486 -0500 Time.at(Time.new, in: '+09:00') # => 2021-04-26 22:52:31.6023486 +0900
Seconds
This form accepts a numeric number of seconds sec and optional keyword argument in:
Time.at(946702800) # => 1999-12-31 23:00:00 -0600 Time.at(946702800, in: '+09:00') # => 2000-01-01 14:00:00 +0900
Seconds with Subseconds and Units
This form accepts an integer number of seconds sec_i, a numeric number of milliseconds msec, a symbol argument for the subsecond unit type (defaulting to :usec), and an optional keyword argument in:
Time.at(946702800, 500, :millisecond) # => 1999-12-31 23:00:00.5 -0600 Time.at(946702800, 500, :millisecond, in: '+09:00') # => 2000-01-01 14:00:00.5 +0900 Time.at(946702800, 500000) # => 1999-12-31 23:00:00.5 -0600 Time.at(946702800, 500000, :usec) # => 1999-12-31 23:00:00.5 -0600 Time.at(946702800, 500000, :microsecond) # => 1999-12-31 23:00:00.5 -0600 Time.at(946702800, 500000, in: '+09:00') # => 2000-01-01 14:00:00.5 +0900 Time.at(946702800, 500000, :usec, in: '+09:00') # => 2000-01-01 14:00:00.5 +0900 Time.at(946702800, 500000, :microsecond, in: '+09:00') # => 2000-01-01 14:00:00.5 +0900 Time.at(946702800, 500000000, :nsec) # => 1999-12-31 23:00:00.5 -0600 Time.at(946702800, 500000000, :nanosecond) # => 1999-12-31 23:00:00.5 -0600 Time.at(946702800, 500000000, :nsec, in: '+09:00') # => 2000-01-01 14:00:00.5 +0900 Time.at(946702800, 500000000, :nanosecond, in: '+09:00') # => 2000-01-01 14:00:00.5 +0900
Parameters:
isec_i is the integer number of seconds in the range 0..60.
msec is the number of milliseconds (Integer, Float, or Rational) in the range 0..1000.
usec is the number of microseconds (Integer, Float, or Rational) in the range 0..1000000.
nsec is the number of nanoseconds (Integer, Float, or Rational) in the range 0..1000000000.
in: zone: a timezone zone, which may be:
A string offset from UTC.
A single letter offset from UTC, in the range 'A'..'Z', 'J' (the so-called military timezone) excluded.
An integer number of seconds.
A timezone object; see Timezone Argument for details.
Returns pathname configuration variable using fpathconf().
name should be a constant under Etc which begins with PC_.
The return value is an integer or nil. nil means indefinite limit. (fpathconf() returns -1 but errno is not set.)
require 'etc' IO.pipe {|r, w| p w.pathconf(Etc::PC_PIPE_BUF) #=> 4096 }
Returns true if ios is associated with a terminal device (tty), false otherwise.
File.new("testfile").isatty #=> false File.new("/dev/tty").isatty #=> true
Returns a MatchData object describing the match, or nil if there was no match. This is equivalent to retrieving the value of the special variable $~ following a normal match. If the second parameter is present, it specifies the position in the string to begin the search.
/(.)(.)(.)/.match("abc")[2] #=> "b" /(.)(.)/.match("abc", 1)[2] #=> "c"
If a block is given, invoke the block with MatchData if match succeed, so that you can write
/M(.*)/.match("Matz") do |m| puts m[0] puts m[1] end
instead of
if m = /M(.*)/.match("Matz") puts m[0] puts m[1] end
The return value is a value from block execution in this case.
Returns true or false to indicate whether the regexp is matched or not without updating $~ and other related variables. If the second parameter is present, it specifies the position in the string to begin the search.
/R.../.match?("Ruby") #=> true /R.../.match?("Ruby", 1) #=> false /P.../.match?("Ruby") #=> false $& #=> nil
Returns a new set that is a copy of the set, flattening each containing set recursively.
Equivalent to Set#flatten, but replaces the receiver with the result in place. Returns nil if no modifications were made.
Returns sym.to_s.match.
Returns sym.to_s.match?.
Allocates space for a new object of class’s class and does not call initialize on the new instance. The returned object must be an instance of class.
klass = Class.new do def initialize(*args) @initialized = true end def initialized? @initialized || false end end klass.allocate.initialized? #=> false
Returns clean pathname of self with consecutive slashes and useless dots removed. The filesystem is not accessed.
If consider_symlink is true, then a more conservative algorithm is used to avoid breaking symbolic linkages. This may retain more .. entries than absolutely necessary, but without accessing the filesystem, this can’t be avoided.
See Pathname#realpath.
The opposite of Pathname#absolute?
It returns false if the pathname begins with a slash.
p = Pathname.new('/im/sure') p.relative? #=> false p = Pathname.new('not/so/sure') p.relative? #=> true
Creates a full path, including any intermediate directories that don’t yet exist.
See FileUtils.mkpath and FileUtils.mkdir_p