User:OrenBochman/Lua Functions & Variables

Functions

• Functions let you avoid duplication
• Functions can have arguments
• The code from the begining of a functions to the end - called the function's scope.

Calling functions

colour = getDivColour()

Defining functions

There are two types of functions

• Local functions for private use within the module

local function plural(word)
    return word .. 's'
end

• Exported functions that can be used outside the module

local p = {}
function p.hello()
    return 'hello'
end
return p

Local variable and global scope

local p = {}
function p.hello()
    return 'hello'
end
return p