Class: NilClass
- Defined in:
- lib/buff/extensions/object/try.rb,
lib/buff/extensions/object/blank.rb
Instance Method Summary collapse
-
#blank? ⇒ Boolean
nil
is blank:. -
#try(*args) ⇒ Object
Calling
try
onnil
always returnsnil
. - #try!(*args) ⇒ Object
Instance Method Details
#blank? ⇒ Boolean
nil
is blank:
nil.blank? # => true
47 48 49 |
# File 'lib/buff/extensions/object/blank.rb', line 47 def blank? true end |
#try(*args) ⇒ Object
Calling try
on nil
always returns nil
. It becomes specially helpful when navigating through associations that may return nil
.
nil.try(:name) # => nil
Without try
@person && !@person.children.blank? && @person.children.first.name
With try
@person.try(:children).try(:first).try(:name)
74 75 76 |
# File 'lib/buff/extensions/object/try.rb', line 74 def try(*args) nil end |
#try!(*args) ⇒ Object
78 79 80 |
# File 'lib/buff/extensions/object/try.rb', line 78 def try!(*args) nil end |