Module:Sandbox/YANKAI04 explained

-- YAN-KAI Google Code-in, Introduction to Lua in Wikipedia.

local p = -- p stands for package

function p.hello(frame) return "Hello, world!"end

p.Hi = function(frame) strName = frame.args.name or "Jimbo" return "Hello from Lua to my friend " .. strName .. ".
"end

return p