class NilClass
Public Instance Methods
blank?()
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nil
is blank:
nil.blank? # => true
# File lib/active_support/core_ext/object/blank.rb, line 47 def blank? true end
try(*args)
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Calling try
on nil
always returns nil
. It becomes specially helpful when navigating through associations that may return nil
.
Examples¶ ↑
nil.try(:name) # => nil
Without try
@person && !@person.children.blank? && @person.children.first.name
With try
@person.try(:children).try(:first).try(:name)
# File lib/active_support/core_ext/object/try.rb, line 50 def try(*args) nil end