class NilClass

Public Instance Methods

blank?() click to toggle source

nil is blank:

nil.blank? # => true

@return [true]

# File lib/wedge/utilis/blank.rb, line 56
def blank?
  true
end
duplicable?() click to toggle source

nil is not duplicable:

nil.duplicable? # => false
nil.dup         # => TypeError: can't dup NilClass
# File lib/wedge/utilis/duplicable.rb, line 43
def duplicable?
  false
end
try(*args) click to toggle source

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

nil.try(:name) # => nil

Without try

@person && @person.children.any? && @person.children.first.name

With try

@person.try(:children).try(:first).try(:name)
# File lib/wedge/utilis/try.rb, line 96
def try(*args)
  nil
end
try!(*args) click to toggle source

Calling try! on nil always returns nil.

nil.try!(:name) # => nil
# File lib/wedge/utilis/try.rb, line 103
def try!(*args)
  nil
end