Unique Random Values

by:

cyrus01337

1. Make a copy of the array
2. Grab a random element from the table, then remove it from the copy
3. Repeat step 2 n times for n random elements

local TOTAL_UNIQUE_ELEMENTS = 3
local array = {"foo", "bar", "baz", "quo"}
local copy = table.clone(array)
local uniqueElements = {}

for i = 1, TOTAL_UNIQUE_ELEMENTS do
	local randomIndex = math.random(#copy)
	local randomElement = array[randomIndex]

	table.insert(uniqueElements, randomElement)
	table.remove(copy, randomIndex)
end

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