From ab0f4db688248a27faba904a0b2bdc55ba9e5ac9 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Fri, 12 Oct 2018 19:00:14 +0900
Subject: Call `uniq!` for each union processing in `Array#union`.

---
 mrbgems/mruby-array-ext/mrblib/array.rb | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'mrbgems/mruby-array-ext')

diff --git a/mrbgems/mruby-array-ext/mrblib/array.rb b/mrbgems/mruby-array-ext/mrblib/array.rb
index eac8d4718..ed3f591fe 100644
--- a/mrbgems/mruby-array-ext/mrblib/array.rb
+++ b/mrbgems/mruby-array-ext/mrblib/array.rb
@@ -143,11 +143,11 @@ class Array
   #
   def union(*args)
     ary = self.dup
-    args.each_with_index do |x,i|
+    args.each do |x|
       ary.concat(x)
-      ary.uniq! if i % 20 == 0
+      ary.uniq!
     end
-    ary.uniq! or ary
+    ary
   end
 
   ##
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