class NilClass
Public Instance Methods
blank?()
click to toggle source
nil
is blank:
nil.blank? # => true
@return [true]
# File lib/flappy/patches/blank.rb, line 54 def blank? true 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/flappy/patches/try.rb, line 95 def try(*args) nil end
try!(*args)
click to toggle source
# File lib/flappy/patches/try.rb, line 99 def try!(*args) nil end