Methods
- B
- D
- T
Instance Public methods
blank?()
Link
nil
is blank:
nil.blank? # => true
@return [true]
duplicable?()
Link
nil
is not duplicable:
nil.duplicable? # => false
nil.dup # => TypeError: can't dup NilClass
to_param()
Link
Returns self
.
try(*args)
Link
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)