Array doubt

[MyEarth]

Hello, I have read the wiki about array:

http://www.autoitscript.com/wiki/Arrays

But i have a doubt, if i declare a Global array and i want to set the data, how i can make everything on a single line instead of three?

Global $aArray[3]

;~ $aArray[3] = [1,2,3]

$aArray[0] = 1
$aArray[1] = 2
$aArray[2] = 3

ConsoleWrite($aArray[0] & @CRLF)

On the wiki i see Local ( or Global ) $aArray but i don't want to redeclare the $variable again because i used it in a func and isn't not a good pratice

[FireFox]

Hi,

That's simple :

Global $aArray[3] = [1, 2, 3]

_

Br, FireFox.

[MyEarth]

Not wait everytime i'll call the function i need to set the variable Global again? I dont' have to learn you nothing but in the "Best coding pratices" you declare a $variable global once at the first time for avoid to redeclare it everytime in a Func

Example:

Global $aArray[3]

SetData(1, 0, 0)
SetData(1, 1, 0)
SetData(1, 2, 3)

ConsoleWrite($aArray[0] & @CRLF)

Func SetData($1, $2, $3)
    Global $aArray[3] = [$1, $2, $3]
EndFunc   ;==>SetData

I that example i have declared $aArray Global for 4 times

 

Always declare your global variables in the global scope, not in the functions. It will prevent another function to use it before its declaration and the declaration is implicit

Edited February 7, 2014 by MyEarth

[FireFox]

This syntax reinitializes the array, so you have to "redeclare" it using Global or Local.

If your array is Global then you can't have a Local variable with this name otherwise it will overwrite the global one.

Br, FireFox.

Edited February 7, 2014 by FireFox

[MyEarth]

Mmm so if i make three lines i don't need to redeclare the $aArray to Global but if i make only one line yes? Is not very understandable to me

[FireFox]

The "one line syntax" is an array initialization, you must define all the contents/indexes of the array.

If you do e.g : $aArray[0] = 5, you only assign a data to an index of the array like any other variable.

Br, FireFox.

[jchd]

If your array is Global then you can't have a Local variable with this name otherwise it will overwrite the global one.

 

That's not it:

Global $a = "abc"

f()
ConsoleWrite("Global $a is still " & $a & @LF)

Func f()
    Local $a = 23
    ConsoleWrite("Local $a is " & $a & @LF)
EndFunc

Edited February 7, 2014 by jchd

[FireFox]

Hmm I see why he was concerned about having the same var name.

Edit : Anyway, it's not related to his issue.

Edited February 7, 2014 by FireFox

[jchd]

Yep, the isue here is semantical: once strict meaning of "scope", "declaration", "initialization" and "assignment" are understood, the mud will vanish.