0
0

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?

More than 5 years have passed since last update.

Rubyでオブジェクトのクラスを調べる方法

Last updated at Posted at 2019-03-19

##classメソッド

###レシーバ
任意のオブジェクト
###戻り値
レシーバが所属しているClassクラスのオブジェクト


irb(main):001:0> String.class
=> Class

##superclassメソッド

###レシーバ
Classクラスのオブジェクト
###戻り値
レシーバが所属しているクラスの親クラスのClassクラスのオブジェクト


irb(main):002:0> String.superclass
=> Object

##ancestorsメソッド

###レシーバ
Classクラスのオブジェクト
###戻り値
レシーバのクラスの継承しているクラス及びモジュールが全て入った配列


irb(main):003:0> String.ancestors
=> [String, Comparable, Object, Kernel, BasicObject]
0
0
2

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
0
0

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?