local functions

[IIYAMA]

I am trying to use local functions but the value still exit the script.

Like as sample:

script 1

  
exits()--trigger 
local function exits() 
myValue = true 
end 
  

script2

  
function checkexit() 
if myValue then 
outputChatBox("exit the script") 
end 
end     
addCommandHandler ( "read", checkexit ) 
  

-------

It will output for me: "exit the script"

What I am doing wrong? Does a local function do something else?

This will solve it, but it isn't a local function.

  
local myValue = true-- out of the function 
  
exits()--trigger 
local function exits() 
myValue = true 
end 
  

[Castillo]

You are triggering the function before it's creation, or that code isn't the real one?

[IIYAMA]

I have 2 client scripts.

Here I set the value in a local function.

  
exits()--trigger 
local function exits() 
myValue = true 
end 

But the value will be active in other client scripts.

Only when I make the value local.

local myValue = true 

It will stay inside the client file.

You can try this sample:

script1

local function exits() 
myValue = true 
end 
addEventHandler ( "onClientResourceStart", resourceRoot, exits) 

script2

  
function checkexit() 
outputChatBox("read") 
if myValue then 
outputChatBox("exit the script") 
end 
end     
addCommandHandler ( "read", checkexit ) 

[Anderl]

Values inside functions will ever be global if you don't declare them as local.

Local functions mean they aren't shared outside of the file ( but any global variables declared within them will be global ), the same happens with any other kind of variable.

Declaring a function is the same as declaring a variable because a function is a variable.

local foo = function() end; -- this is a variable declaration just like the code below 
local foo2 = 23; -- this is a variable declaration too but 'foo' is a function variable and 'foo2' is an int variable. 

Declaring:

local foo = function() end; 

Is the same as declaring this:

local function foo() end; 

[IIYAMA]

ok, thank you

But when should you use a local function, when the data inside stay's global?

Does this really matter in mta lua? (stopping the line) ";"

[Anderl]

You use local functions when, for example, you are creating a library. E.g. in C++, PHP and Java( I don't know about this one, never learned it ) there are classes and you can declare functions as private or publics so that programmers just use public functions to manage the whole thing and private functions do the job. In Lua, it's the same. You create local functions to do the job for you and the global functions will be the "interface". Well, this is just an example of what you can use local functions for, but there are a lot more.

As for the ";" in the end, it doesn't matter. I just liked it since I started with PHP and C++.

[IIYAMA]

Ok thank you again.

It was very clear.

[Anderl]

You're welcome.