Class: NilClass

Inherits:
Object show all
Defined in:
lib/garcon/core_ext/nil.rb

Overview

Add #blank? method to NilClass class.

Instance Method Summary collapse

Instance Method Details

#blank? ⇒ TrueClass

Nil is always blank

Examples:

nil.blank?        # =>  true

Returns:



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# File 'lib/garcon/core_ext/nil.rb', line 30

def blank?
  true
end

#clone? ⇒ Boolean

Returns:



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# File 'lib/garcon/core_ext/nil.rb', line 52

def clone? ; false ; end

#dup! ⇒ Object

Since NilClass is immutable it cannot be duplicated. For this reason #try_dup returns self.

nil.dup!  #=> nil



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# File 'lib/garcon/core_ext/nil.rb', line 50

def dup!   ; self  ; end

#dup? ⇒ Boolean

Returns:



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# File 'lib/garcon/core_ext/nil.rb', line 51

def dup?   ; false ; end

#try(*args) ⇒ Object

Calling ‘try` on `nil` always returns `nil`. It becomes especially helpful when navigating through associations that may return `nil`.



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# File 'lib/garcon/core_ext/nil.rb', line 37

def try(*args)
  nil
end

#try!(*args) ⇒ Object 



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# File 'lib/garcon/core_ext/nil.rb', line 41

def try!(*args)
  nil
end