diff --git a/ElvUI/Core/Movers.lua b/ElvUI/Core/Movers.lua
index 946b77a..ad6c141 100644
--- a/ElvUI/Core/Movers.lua
+++ b/ElvUI/Core/Movers.lua
@@ -338,9 +338,7 @@ function E:CreateMover(parent, name, text, overlay, snapoffset, postdrag, moverT
 		E.CreatedMovers[name]["shouldDisable"] = shouldDisable
 
 		E.CreatedMovers[name]["type"] = {}
-		local types = {split(",", moverTypes)}
-		for i = 1, getn(types) do
-			local moverType = types[i]
+		for _, moverType in {split(",", moverTypes)} do
 			E.CreatedMovers[name]["type"][moverType] = true
 		end
 	end
diff --git a/ElvUI/Core/core.lua b/ElvUI/Core/core.lua
index eb12577..38bfc24 100644
--- a/ElvUI/Core/core.lua
+++ b/ElvUI/Core/core.lua
@@ -931,7 +931,7 @@ function E:RegisterModule(name, loadFunc)
 
 			--Add module name to registry
 			self.ModuleCallbacks[name] = true
-			self.ModuleCallbacks["CallPriority"][getn(self.ModuleCallbacks["CallPriority"]) + 1] = name
+			tinsert(self.ModuleCallbacks["CallPriority"], name)
 
 			--Register loadFunc to be called when event is fired
 			E:RegisterCallback(name, loadFunc, E:GetModule(name))
@@ -941,7 +941,7 @@ function E:RegisterModule(name, loadFunc)
 		if self.initialized then
 			self:GetModule(name):Initialize()
 		else
-			self["RegisteredModules"][getn(self["RegisteredModules"]) + 1] = name
+			tinsert(self["RegisteredModules"], name)
 		end
 	end
 end
@@ -957,13 +957,13 @@ function E:RegisterInitialModule(name, loadFunc)
 
 		--Add module name to registry
 		self.InitialModuleCallbacks[name] = true
-		self.InitialModuleCallbacks["CallPriority"][getn(self.InitialModuleCallbacks["CallPriority"]) + 1] = name
+		tinsert(self.InitialModuleCallbacks["CallPriority"], name)
 
 		--Register loadFunc to be called when event is fired
 		E:RegisterCallback(name, loadFunc, E:GetModule(name))
 	--Old deprecated initialize method
 	else
-		self["RegisteredInitialModules"][getn(self["RegisteredInitialModules"]) + 1] = name
+		tinsert(self["RegisteredInitialModules"], name)
 	end
 end
 
diff --git a/ElvUI/Libraries/AceSerializer-3.0/AceSerializer-3.0.lua b/ElvUI/Libraries/AceSerializer-3.0/AceSerializer-3.0.lua
index f6e1b0c..ab9ab03 100644
--- a/ElvUI/Libraries/AceSerializer-3.0/AceSerializer-3.0.lua
+++ b/ElvUI/Libraries/AceSerializer-3.0/AceSerializer-3.0.lua
@@ -117,8 +117,7 @@ function AceSerializer:Serialize(...)
 	local nres = 1
 
 	for i = 1, arg.n do
-		local v = select(i, unpack(arg))
-		nres = SerializeValue(v, serializeTbl, nres)
+		nres = SerializeValue(arg[i], serializeTbl, nres)
 	end
 
 	serializeTbl[nres+1] = "^^"	-- "^^" = End of serialized data
diff --git a/ElvUI/Libraries/LibItemSearch-1.2/LibItemSearch-1.2.lua b/ElvUI/Libraries/LibItemSearch-1.2/LibItemSearch-1.2.lua
index 43cd1af..7c9a97c 100644
--- a/ElvUI/Libraries/LibItemSearch-1.2/LibItemSearch-1.2.lua
+++ b/ElvUI/Libraries/LibItemSearch-1.2/LibItemSearch-1.2.lua
@@ -14,6 +14,7 @@ end
 
 local pairs, select, tonumber = pairs, select, tonumber
 local find, gsub, match, lower = string.find, string.gsub, string.match, string.lower
+local getn = table.getn
 
 local GetItemInfo = GetItemInfo
 
diff --git a/ElvUI/Libraries/oUF/ouf.lua b/ElvUI/Libraries/oUF/ouf.lua
index 82586ca..751dd0f 100644
--- a/ElvUI/Libraries/oUF/ouf.lua
+++ b/ElvUI/Libraries/oUF/ouf.lua
@@ -36,41 +36,6 @@ local function enableTargetUpdate(object)
 end
 Private.enableTargetUpdate = enableTargetUpdate
 
-local function updateActiveUnit(self, event, unit)
-	return true
-end
-
-local function iterateChildren(...)
-	for i = 1, getn(arg) do
-		local obj = arg[i]
-
-		if(type(obj) == "table" and obj.isChild) then
-			updateActiveUnit(obj, "iterateChildren")
-		end
-	end
-end
-
-local function onAttributeChanged(self, name, value)
-	if(name == "unit" and value) then
-		if(self.hasChildren) then
-			iterateChildren(self:GetChildren())
-		end
-
-		if(not self.onlyProcessChildren) then
-			updateActiveUnit(self, "OnAttributeChanged")
-		end
-
-		if(self.unit and self.unit == value) then
-			return
-		else
-			if(self.hasChildren) then
-				iterateChildren(self:GetChildren())
-			end
-		end
-
-	end
-end
-
 local frame_metatable = {
 	__index = CreateFrame("Button")
 }
@@ -278,7 +243,7 @@ local function onShow(self)
 end
 
 local function initObject(unit, style, styleFunc, header, ...)
-	local num = getn(arg)
+	local num = arg.n
 	for i = 1, num do
 		local object = arg[i]
 		local objectUnit = object.guessUnit or unit
@@ -452,8 +417,8 @@ do
 	function getCondition(...)
 		local cond = ""
 
-		for i = 1, getn(arg) do
-			local short = select(i, unpack(arg))
+		for i = 1, arg.n do
+			local short = arg[i]
 
 			local condition = conditions[short]
 			if(condition) then
diff --git a/ElvUI/Libraries/oUF/private.lua b/ElvUI/Libraries/oUF/private.lua
index 7dc3a17..8667efa 100644
--- a/ElvUI/Libraries/oUF/private.lua
+++ b/ElvUI/Libraries/oUF/private.lua
@@ -5,8 +5,7 @@ function Private.argcheck(value, num, ...)
 	assert(type(num) == 'number', "Bad argument #2 to 'argcheck' (number expected, got " .. type(num) .. ')')
 
 	for i = 1, arg.n do
-		-- if(type(value) == arg[i]) then return end
-		if(type(value) == select(i, unpack(arg))) then return end
+		if(type(value) == arg[i]) then return end
 	end
 
 	local types = strjoin(', ', unpack(arg))
diff --git a/ElvUI/Libraries/oUF_Plugins/oUF_GPS/oUF_GPS.lua b/ElvUI/Libraries/oUF_Plugins/oUF_GPS/oUF_GPS.lua
index dc75259..8a78e6c 100644
--- a/ElvUI/Libraries/oUF_Plugins/oUF_GPS/oUF_GPS.lua
+++ b/ElvUI/Libraries/oUF_Plugins/oUF_GPS/oUF_GPS.lua
@@ -3,7 +3,7 @@ local oUF = ns.oUF
 assert(oUF, "oUF not loaded")
 
 local cos, sin, sqrt2, max, atan2 = math.cos, math.sin, math.sqrt(2), math.max, math.atan2
-local tinsert, tremove = table.insert, table.remove
+local getn, tinsert, tremove = table.getn, table.insert, table.remove
 local pi2 = 3.141592653589793 / 2
 
 local GetPlayerMapPosition = GetPlayerMapPosition
diff --git a/ElvUI/Modules/Auras/Auras.lua b/ElvUI/Modules/Auras/Auras.lua
index 1dc3c48..7eefce7 100644
--- a/ElvUI/Modules/Auras/Auras.lua
+++ b/ElvUI/Modules/Auras/Auras.lua
@@ -9,7 +9,7 @@ local _G = _G
 local unpack, select, pairs, ipairs = unpack, select, pairs, ipairs
 local floor, min, max, huge = math.floor, math.min, math.max, math.huge
 local format = string.format
-local wipe, tinsert, tsort, tremove = table.wipe, table.insert, table.sort, table.remove
+local getn, wipe, tinsert, tsort, tremove = table.getn, table.wipe, table.insert, table.sort, table.remove
 --WoW API / Variables
 local CreateFrame = CreateFrame
 local GetInventoryItemQuality = GetInventoryItemQuality
diff --git a/ElvUI/Modules/Bags/Sort.lua b/ElvUI/Modules/Bags/Sort.lua
index 703a17b..87eb7de 100644
--- a/ElvUI/Modules/Bags/Sort.lua
+++ b/ElvUI/Modules/Bags/Sort.lua
@@ -5,7 +5,7 @@ local Search = LibStub("LibItemSearch-1.2");
 --Cache global variables
 --Lua functions
 local ipairs, pairs, pcall, tonumber, select, unpack = ipairs, pairs, pcall, tonumber, select, unpack
-local tinsert, tremove, tsort, twipe = table.insert, table.remove, table.sort, table.wipe
+local getn, tinsert, tremove, tsort, twipe = table.getn, table.insert, table.remove, table.sort, table.wipe
 local floor, mod = math.floor, math.mod
 local band = bit.band
 local match, gmatch, find = string.match, string.gmatch, string.find
diff --git a/ElvUI/Modules/Skins/Blizzard/Craft.lua b/ElvUI/Modules/Skins/Blizzard/Craft.lua
index ac4eb4e..80cb9d8 100644
--- a/ElvUI/Modules/Skins/Blizzard/Craft.lua
+++ b/ElvUI/Modules/Skins/Blizzard/Craft.lua
@@ -1,5 +1,5 @@
-local E, L, V, P, G = unpack(ElvUI) --Import: Engine, Locales, PrivateDB, ProfileDB, GlobalDB
-local S = E:GetModule("Skins")
+local E, L, V, P, G = unpack(ElvUI); --Import: Engine, Locales, PrivateDB, ProfileDB, GlobalDB
+local S = E:GetModule("Skins");
 
 --Cache global variables
 --Lua functions
diff --git a/ElvUI/Modules/Skins/Blizzard/TradeSkill.lua b/ElvUI/Modules/Skins/Blizzard/TradeSkill.lua
index c7dc68d..cacaf4b 100644
--- a/ElvUI/Modules/Skins/Blizzard/TradeSkill.lua
+++ b/ElvUI/Modules/Skins/Blizzard/TradeSkill.lua
@@ -1,5 +1,5 @@
-local E, L, V, P, G = unpack(ElvUI) --Import: Engine, Locales, PrivateDB, ProfileDB, GlobalDB
-local S = E:GetModule("Skins")
+local E, L, V, P, G = unpack(ElvUI); --Import: Engine, Locales, PrivateDB, ProfileDB, GlobalDB
+local S = E:GetModule("Skins");
 
 --Cache global variables
 --Lua functions
diff --git a/ElvUI/Modules/Skins/Skins.lua b/ElvUI/Modules/Skins/Skins.lua
index 4b928d6..792943e 100644
--- a/ElvUI/Modules/Skins/Skins.lua
+++ b/ElvUI/Modules/Skins/Skins.lua
@@ -535,7 +535,7 @@ function S:AddCallbackForAddon(addonName, eventName, loadFunc, forceLoad, bypass
 	else
 		--Insert eventName in this addons' registry
 		self.addonCallbacks[addonName][eventName] = true
-		self.addonCallbacks[addonName]["CallPriority"][getn(self.addonCallbacks[addonName]["CallPriority"]) + 1] = eventName
+		tinsert(self.addonCallbacks[addonName]["CallPriority"], eventName)
 	end
 end
 
@@ -558,7 +558,7 @@ function S:AddCallback(eventName, loadFunc)
 
 	--Add event name to registry
 	self.nonAddonCallbacks[eventName] = true
-	self.nonAddonCallbacks["CallPriority"][getn(self.nonAddonCallbacks["CallPriority"]) + 1] = eventName
+	tinsert(self.nonAddonCallbacks["CallPriority"], eventName)
 
 	--Register loadFunc to be called when event is fired
 	E.RegisterCallback(E, eventName, loadFunc)
diff --git a/ElvUI/Modules/Tooltip/Tooltip.lua b/ElvUI/Modules/Tooltip/Tooltip.lua
index 56fd017..0c8d0dd 100644
--- a/ElvUI/Modules/Tooltip/Tooltip.lua
+++ b/ElvUI/Modules/Tooltip/Tooltip.lua
@@ -5,7 +5,7 @@ local TT = E:NewModule("Tooltip", "AceHook-3.0", "AceEvent-3.0");
 --Lua functions
 local _G = _G
 local unpack = unpack
-local twipe, tinsert, tconcat = table.wipe, table.insert, table.concat
+local getn, twipe, tinsert, tconcat = table.getn, table.wipe, table.insert, table.concat
 local floor = math.floor
 local find, format, match = string.find, string.format, string.match
 --WoW API / Variables