From 5cd33398a5620002eb27c60eb0ca223accfbcaef Mon Sep 17 00:00:00 2001
From: Max Cahill <max@1bardesign.com>
Date: Tue, 4 May 2021 20:52:47 +1000
Subject: [PATCH] [added] tablex.swap

---
 tablex.lua | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tablex.lua b/tablex.lua
index 7f75872..4ef1e02 100644
--- a/tablex.lua
+++ b/tablex.lua
@@ -48,6 +48,12 @@ function tablex.unshift(t, v)
 	return t
 end
 
+--swap two indices of a table
+--(easier to read and generally less typing than the common idiom)
+function tablex.swap(t, i, j)
+	t[i], t[j] = t[j], t[i]
+end
+
 --insert to the first position before the first larger element in the table
 --if this is used on an already sorted table, the table will remain sorted and not need re-sorting
 --todo: make it do binary search rather than linear to improve performance