StackRating
An Elo-based rating system for Stack Overflow
Home
|
About
|
Stats and Analysis
|
Get a Badge
Answers and rating deltas for
RAILS EXCEPTION: undefined method `keys' for nil:NilClass
Author
Votes
Δ
glampr
6
+4.00
Bohdan
1
-0.50
Last visited: Sep 14, 2014, 5:07:29 AM