Created
September 30, 2011 19:21
-
-
Save darrenboyd/1254726 to your computer and use it in GitHub Desktop.
Class Variable Confusion in Ruby
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| class A | |
| @@a = 1 | |
| def val | |
| @@a += 1 | |
| end | |
| end | |
| class B < A | |
| @@a = 2 | |
| def val | |
| @@a += 1 | |
| end | |
| end | |
| b = B.new | |
| puts b.val # <= 3 | |
| puts b.val # <= 4 | |
| # Do you know what this puts? | |
| puts A.new.val |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment