Class: Numeric

Inherits:
Object show all
Defined in:
lib/mug/bool.rb,
lib/mug/negativity.rb

Instance Method Summary collapse

Instance Method Details

#negative! ⇒ Numeric?

If this number is negative (i.e. < 0), returns itself, otherwise returns nil.

Examples:

require 'mug/negativity'
-1.negative!  #=> -1
0.negative!   #=> nil
1.negative!   #=> nil

Returns:



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# File 'lib/mug/negativity.rb', line 65

def negative!
  self < 0 ? self : nil
end

#negative? ⇒ Boolean

Returns true if this number is negative (i.e. < 0), false otherwise.

Examples:

require 'mug/negativity'
-1.negative?  #=> true
0.negative?   #=> false
1.negative?   #=> false

Returns:

  • (Boolean) 


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# File 'lib/mug/negativity.rb', line 13

def negative?
  self < 0
end

#nonnegative! ⇒ Numeric?

If this number is nonnegative (i.e. >= 0), returns itself, otherwise returns nil.

Examples:

require 'mug/negativity'
1.nonnegative!   #=> 1
0.nonnegative!   #=> 0
-1.nonnegative!  #=> nil

Returns:



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# File 'lib/mug/negativity.rb', line 91

def nonnegative!
  self >= 0 ? self : nil
end

#nonnegative? ⇒ Boolean

Returns true if this number is nonnegative (i.e. >= 0), false otherwise.

Examples:

require 'mug/negativity'
1.nonnegative?   #=> true
0.nonnegative?   #=> true
-1.nonnegative?  #=> false

Returns:

  • (Boolean) 


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# File 'lib/mug/negativity.rb', line 39

def nonnegative?
  self >= 0
end

#nonpositive! ⇒ Numeric?

If this number is nonpositive (i.e. <= 0), returns itself, otherwise returns nil.

Examples:

require 'mug/negativity'
-1.nonpositive!  #=> -1
0.nonpositive!   #=> 0
1.nonpositive!   #=> nil

Returns:



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# File 'lib/mug/negativity.rb', line 104

def nonpositive!
  self <= 0 ? self : nil
end

#nonpositive? ⇒ Boolean

Returns true if this number is nonpositive (i.e. <= 0), false otherwise.

Examples:

require 'mug/negativity'
-1.nonpositive?  #=> true
0.nonpositive?   #=> true
1.nonpositive?   #=> false

Returns:

  • (Boolean) 


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# File 'lib/mug/negativity.rb', line 52

def nonpositive?
  self <= 0
end

#positive! ⇒ Numeric?

If this number is positive (i.e. > 0), returns itself, otherwise returns nil.

Examples:

require 'mug/negativity'
1.positive!   #=> 1
0.positive!   #=> nil
-1.positive!  #=> nil

Returns:



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# File 'lib/mug/negativity.rb', line 78

def positive!
  self > 0 ? self : nil
end

#positive? ⇒ Boolean

Returns true if this number is positive (i.e. > 0), false otherwise.

Examples:

require 'mug/negativity'
1.positive?   #=> true
0.positive?   #=> false
-1.positive?  #=> false

Returns:

  • (Boolean) 


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# File 'lib/mug/negativity.rb', line 26

def positive?
  self > 0
end

#to_b ⇒ Boolean

Converts num to a boolean. Returns true if not zero.

Returns:

  • (Boolean) —

    true if self is non-zero



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# File 'lib/mug/bool.rb', line 75

def to_b
  !self.zero?
end