What the difference between function test(a) and function test()

[g1doz]

What the difference between this

function test(a)
end

and this

function test()
end

What to do function if we add a character in parentheses ?

[ItsSC]

test(a) is a preset function. 
a is a variable. 

for example you are lazy to type gg.searchNumber(x,y) then you can do this 
 

-- Preset function 
function SD(x) --search dword
	gg.searchNumber(x,gg.TYPE_DWORD)
end

then you can now use SD(any value) to search for dword. X is just an unknown, you can input any value inside or any variable.

[Enyby]

It is called function arguments. Try read some basic tutorial about programming.

http://lua-users.org/wiki/FunctionsTutorial

[g1doz]

ok enyby and thx you ItsSC