# class Numeric

### Constants

EXABYTE
GIGABYTE
KILOBYTE
MEGABYTE
PETABYTE
TERABYTE

### Public Instance Methods

ago(time = ::Time.current) click to toggle source

Reads best without arguments: 10.minutes.ago

    # File lib/active_support/core_ext/numeric/time.rb, line 65
    def ago(time = ::Time.current)
      time - self
    end

Also aliased as: until
as_json(options = nil) click to toggle source

    # File lib/active_support/json/encoding.rb, line 185
    def as_json(options = nil) self end

byte() click to toggle source
Alias for: bytes
bytes() click to toggle source

Enables the use of byte calculations and declarations, like 45.bytes + 2.6.megabytes

    # File lib/active_support/core_ext/numeric/bytes.rb, line 10
    def bytes
      self
    end

Also aliased as: byte
day() click to toggle source
Alias for: days
days() click to toggle source

    # File lib/active_support/core_ext/numeric/time.rb, line 49
    def days
      ActiveSupport::Duration.new(self * 24.hours, [[:days, self]])
    end

Also aliased as: day
duplicable?() click to toggle source

Numbers are not duplicable:

    3.duplicable? # => false
    3.dup         # => TypeError: can't dup Fixnum

    # File lib/active_support/core_ext/object/duplicable.rb, line 79
    def duplicable?
      false
    end

encode_json(encoder) click to toggle source

    # File lib/active_support/json/encoding.rb, line 186
    def encode_json(encoder) to_s end

exabyte() click to toggle source
Alias for: exabytes
exabytes() click to toggle source

    # File lib/active_support/core_ext/numeric/bytes.rb, line 40
    def exabytes
      self * EXABYTE
    end

Also aliased as: exabyte
fortnight() click to toggle source
Alias for: fortnights
fortnights() click to toggle source

    # File lib/active_support/core_ext/numeric/time.rb, line 59
    def fortnights
      ActiveSupport::Duration.new(self * 2.weeks, [[:days, self * 14]])
    end

Also aliased as: fortnight
from_now(time = ::Time.current) click to toggle source

Reads best without arguments: 10.minutes.from_now

Alias for: since
gigabyte() click to toggle source
Alias for: gigabytes
gigabytes() click to toggle source

    # File lib/active_support/core_ext/numeric/bytes.rb, line 25
    def gigabytes
      self * GIGABYTE
    end

Also aliased as: gigabyte
hour() click to toggle source
Alias for: hours
hours() click to toggle source

    # File lib/active_support/core_ext/numeric/time.rb, line 44
    def hours
      ActiveSupport::Duration.new(self * 3600, [[:seconds, self * 3600]])
    end

Also aliased as: hour
html_safe?() click to toggle source

    # File lib/active_support/core_ext/string/output_safety.rb, line 83
    def html_safe?
      true
    end

kilobyte() click to toggle source
Alias for: kilobytes
kilobytes() click to toggle source

    # File lib/active_support/core_ext/numeric/bytes.rb, line 15
    def kilobytes
      self * KILOBYTE
    end

Also aliased as: kilobyte
megabyte() click to toggle source
Alias for: megabytes
megabytes() click to toggle source

    # File lib/active_support/core_ext/numeric/bytes.rb, line 20
    def megabytes
      self * MEGABYTE
    end

Also aliased as: megabyte
minute() click to toggle source
Alias for: minutes
minutes() click to toggle source

    # File lib/active_support/core_ext/numeric/time.rb, line 39
    def minutes
      ActiveSupport::Duration.new(self * 60, [[:seconds, self * 60]])
    end

Also aliased as: minute
petabyte() click to toggle source
Alias for: petabytes
petabytes() click to toggle source

    # File lib/active_support/core_ext/numeric/bytes.rb, line 35
    def petabytes
      self * PETABYTE
    end

Also aliased as: petabyte
second() click to toggle source
Alias for: seconds
seconds() click to toggle source

Enables the use of time calculations and declarations, like 45.minutes + 2.hours + 4.years.

These methods use Time#advance for precise date calculations when using #from_now, ago, etc. as well as adding or subtracting their results from a Time object. For example:

    # equivalent to Time.now.advance(:months => 1)
    1.month.from_now

    # equivalent to Time.now.advance(:years => 2)
    2.years.from_now

    # equivalent to Time.now.advance(:months => 4, :years => 5)
    (4.months + 5.years).from_now

While these methods provide precise calculation when used as in the examples above, care should be taken to note that this is not true if the result of `months’, `years’, etc is converted before use:

    # equivalent to 30.days.to_i.from_now
    1.month.to_i.from_now

    # equivalent to 365.25.days.to_f.from_now
    1.year.to_f.from_now

In such cases, Ruby’s core Date and Time should be used for precision date and time arithmetic

    # File lib/active_support/core_ext/numeric/time.rb, line 34
    def seconds
      ActiveSupport::Duration.new(self, [[:seconds, self]])
    end

Also aliased as: second
since(time = ::Time.current) click to toggle source

Reads best with argument: 10.minutes.since(time)

    # File lib/active_support/core_ext/numeric/time.rb, line 73
    def since(time = ::Time.current)
      time + self
    end

Also aliased as: from_now
terabyte() click to toggle source
Alias for: terabytes
terabytes() click to toggle source

    # File lib/active_support/core_ext/numeric/bytes.rb, line 30
    def terabytes
      self * TERABYTE
    end

Also aliased as: terabyte
until(time = ::Time.current) click to toggle source

Reads best with argument: 10.minutes.until(time)

Alias for: ago
week() click to toggle source
Alias for: weeks
weeks() click to toggle source

    # File lib/active_support/core_ext/numeric/time.rb, line 54
    def weeks
      ActiveSupport::Duration.new(self * 7.days, [[:days, self * 7]])
    end

Also aliased as: week