Clarify !! rule

cchongXD · Oct 11, 2013 · a15f631 · a15f631
1 parent d950f0c
commit a15f631
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -634,7 +634,7 @@ Never use `::` for regular method invocation.
     x = !something
     ```
 
-* Avoid the use of `!!`.
+* Avoid the use of `!!` to convert an object to a `boolean` value.
 
     ```Ruby
     # bad - doesn't work properly with boolean values