From 4364f0079464fc02ab2472a0d53e5b4cb9379e2f Mon Sep 17 00:00:00 2001
From: Zachary Jones <zjones@mdsol.com>
Date: Tue, 24 Mar 2015 19:10:44 -0400
Subject: [PATCH] add style for proc calling with simple blocks

---
 README.md | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5e8da7f34..df7615883 100644
--- a/README.md
+++ b/README.md
@@ -1106,6 +1106,18 @@ condition](#safe-assignment-in-condition).
   'test'.upcase
   ```
 
+* <a name="single-action-blocks"></a>
+  Use the proc invocation shorthand when the invoked method is the only operation of a block.
+<sup>[[link](#single-action-blocks)]</sup>
+
+  ```Ruby
+  # bad
+  names.map { |name| name.upcase }
+
+  # good
+  names.map(&:upcase)
+  ```
+
 * <a name="single-line-blocks"></a>
   Prefer `{...}` over `do...end` for single-line blocks.  Avoid using `{...}`
   for multi-line blocks (multiline chaining is always ugly). Always use
@@ -1130,7 +1142,7 @@ condition](#safe-assignment-in-condition).
   end.map { |name| name.upcase }
 
   # good
-  names.select { |name| name.start_with?('S') }.map { |name| name.upcase }
+  names.select { |name| name.start_with?('S') }.map(&:upcase)
   ```
 
   Some will argue that multiline chaining would look OK with the use of {...},