From f13f9f694615780ef0d3d7741e84892d572d5be9 Mon Sep 17 00:00:00 2001
From: zzak <zzak@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 22 Sep 2014 10:50:52 +0000
Subject: * doc/syntax/methods.rdoc: [DOC] [] and []= methods by @process  
 [Fixes GH-662] https://github.com/ruby/ruby/pull/662

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47685 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 doc/syntax/methods.rdoc | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'doc')

diff --git a/doc/syntax/methods.rdoc b/doc/syntax/methods.rdoc
index 648843e753..58179549f3 100644
--- a/doc/syntax/methods.rdoc
+++ b/doc/syntax/methods.rdoc
@@ -109,6 +109,25 @@ operator with an <code>@</code> as in <code>+@</code> or <code>!@</code>:
 
 Unary methods accept zero arguments.
 
+Additionally, methods for element reference and assignment may be defined: 
+<code>[]</code> and <code>[]=</code> respectively. Both can take one or more 
+arguments, and element reference can take none.
+
+  class C
+    def [](a, b)
+      puts a + b
+    end
+    
+    def []=(a, b, c)
+      puts a * b + c
+    end
+  end
+  
+  obj = C.new
+  
+  obj[2, 3]     # prints "5"
+  obj[2, 3] = 4 # prints "10"
+
 == Return Values
 
 By default, a method returns the last expression that was evaluated in the body
-- 
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