From 668ab73b629dd830053c4eeaded6749d94d95e5b Mon Sep 17 00:00:00 2001
From: Pramono <pramono_winata@yahoo.com>
Date: Wed, 9 Oct 2019 23:19:52 +0700
Subject: [PATCH] creational/singleton: avoid another object creation

---
 creational/singleton.md | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/creational/singleton.md b/creational/singleton.md
index 632cdf8..5c3407b 100644
--- a/creational/singleton.md
+++ b/creational/singleton.md
@@ -16,9 +16,11 @@ var (
 )
 
 func New() singleton {
-	once.Do(func() {
-		instance = make(singleton)
-	})
+	if singleton == nil {
+		once.Do(func() {
+			instance = make(singleton)
+		})
+	}
 
 	return instance
 }