abstract class Object

Overview

Object is the base type of all Crystal objects.

Defined in:

Instance Method Summary

• #blank? : Bool

  Returns if object is blank one - empty (or whitespaced) string, empty array, empty hash, nil or false.

• #present?

  Returns if object is not blank one - empty (or whitespaced) string, empty array, empty hash, nil or false.

Macro Summary

• singleton_delegate(*methods, to)

  Defines class method delegation.

Instance Method Detail

Macro Detail

class A
  def self.method1
  end
end

class B
  singleton_delegate :method1, to: A
end