https://git.ruby-lang.org/ruby.git/commit/?id=2e947bc181

From 2e947bc181794d1bcf26d700b2c2c15b53c45b36 Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@r...>
Date: Tue, 29 Sep 2020 14:39:21 +0900
Subject: doc/syntax/literals.rdoc: explain `#@foo` and `#$foo`


diff --git a/doc/syntax/literals.rdoc b/doc/syntax/literals.rdoc
index e58430e..c871d27 100644
--- a/doc/syntax/literals.rdoc
+++ b/doc/syntax/literals.rdoc
@@ -143,6 +143,9 @@ Double-quote strings allow interpolation of other values using https://github.com/ruby/ruby/blob/trunk/doc/syntax/literals.rdoc#L143
 Any expression may be placed inside the interpolated section, but it's best to
 keep the expression small for readability.
 
+You can also use <tt>#@foo</tt> and <tt>#$foo</tt> as a shorthand for,
+respentively, <tt>#{ @foo }</tt> and <tt>#{ $foo }</tt>.
+
 Interpolation may be disabled by escaping the "#" character or using
 single-quote strings:
 
-- 
cgit v0.10.2


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