Functions
This is a central concept in writing good code. A function allows you to make a small piece of code which does one thing well and often can be reused if the same functionality is needed in multiple places. Functions apply a core design principal: separation of concerns.
Functions are Block statements.
function APPadd(a,b)
local sum = a + b
return sum
end
local sum = APPadd(2,3) -- returns 5
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Arguments (ex. a,b) are variables which are used to pass data into a function.
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Functions can r eturn one or morevalues . Return ends function execution and returns the specified values to where the function was called.
See: