From 0572f1ef240e909b4e16feda8964e56cfb1aa982 Mon Sep 17 00:00:00 2001
From: Matthew Wild <mwild1@gmail.com>
Date: Wed, 7 Dec 2011 05:04:55 +0000
Subject: util.array: Add pluck() method to pick a given property from each
 item

---
 util/array.lua | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/util/array.lua b/util/array.lua
index 5dbd3037..cf586214 100644
--- a/util/array.lua
+++ b/util/array.lua
@@ -60,6 +60,13 @@ function array_base.sort(outa, ina, ...)
 	return outa;
 end
 
+function array_base.pluck(outa, ina, key)
+	for i=1,#ina do
+		outa[i] = ina[i][key];
+	end
+	return outa;
+end
+
 --- These methods only mutate
 function array_methods:random()
 	return self[math.random(1,#self)];
-- 
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