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When this module is included in another, Ruby calls append_features in this module, passing it the receiving module in mod. Ruby’s default implementation is to add the constants, methods, and module variables of this module to mod if this module has not already been added to mod or one of its ancestors. See also Module#include.

When this module is prepended in another, Ruby calls prepend_features in this module, passing it the receiving module in mod. Ruby’s default implementation is to overlay the constants, methods, and module variables of this module to mod if this module has not already been added to mod or one of its ancestors. See also Module#prepend.

Creates instance variables and corresponding methods that return the value of each instance variable. Equivalent to calling “attr:name” on each name in turn. String arguments are converted to symbols.

Creates an accessor method to allow assignment to the attribute symbol.id2name. String arguments are converted to symbols.

Defines a named attribute for this module, where the name is symbol.id2name, creating an instance variable (@name) and a corresponding access method to read it. Also creates a method called name= to set the attribute. String arguments are converted to symbols.

module Mod
  attr_accessor(:one, :two)
end
Mod.instance_methods.sort   #=> [:one, :one=, :two, :two=]

Makes a list of existing constants private.

Import a JSON Marshalled object.

method used for JSON marshalling support.

Returns the factorization of self.

See Prime#prime_division for more details.

Iterates the given block over all prime numbers.

See Prime#each for more details.

Deserializes JSON string by converting numerator value n, denominator value d, to a Rational object.

Returns true if the given ordinal date is valid, and false if not.

Date.valid_ordinal?(2001,34)      #=> true
Date.valid_ordinal?(2001,366)     #=> false

See also jd and ordinal.

Returns true if the given calendar date is valid, and false if not.

Date.valid_date?(2001,2,3)        #=> true
Date.valid_date?(2001,2,29)       #=> false

See also jd and civil.

Returns true if the given week date is valid, and false if not.

Date.valid_commercial?(2001,5,6)  #=> true
Date.valid_commercial?(2001,5,8)  #=> false

See also jd and commercial.

This method is equivalent to d >> n

This method is equivalent to d << n

Returns a Time object which denotes self.

Returns self;

Deserializes JSON string by converting Julian year y, month m, day d and Day of Calendar Reform sg to Date.

Returns a Time object which denotes self.

Returns a Date object which denotes self.

Deserializes JSON string by converting year y, month m, day d, hour H, minute M, second S, offset of and Day of Calendar Reform sg to DateTime.

Returns a copy of self as local mode.

Returns a Date object which denotes self.