Methods

Instance Public methods

blank?()

nil is blank:

nil.blank? # => true

@return [true]

📝 Source code 
# File activesupport/lib/active_support/core_ext/object/blank.rb, line 56
  def blank?
    true
  end
🔎 See on GitHub

to_param()

Returns self.

📝 Source code 
# File activesupport/lib/active_support/core_ext/object/to_query.rb, line 20
  def to_param
    self
  end
🔎 See on GitHub

try(*)

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)
📝 Source code 
# File activesupport/lib/active_support/core_ext/object/try.rb, line 148
  def try(*)
    nil
  end
🔎 See on GitHub

try!(*)

Calling try! on nil always returns nil.

nil.try!(:name) # => nil
📝 Source code 
# File activesupport/lib/active_support/core_ext/object/try.rb, line 155
  def try!(*)
    nil
  end
🔎 See on GitHub