From The Redstone Compendium, the online reference for all of technical Minecraft
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Documentation for this module may be created at Module:If empty/doc
local p = {}
function p.main(frame)
local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:If empty', removeBlanks = false})
local lastk = 0
for k,v in ipairs(args) do
if v ~= '' then
return v
end
lastk = k
end
end
return p