I'm trying to pass a nested array to a function, such that the function alters the inner array.
I was surprised to find that this minimal reproducible example, despite its use of ByRef, seems to pass a copy of the inner array to the function:
#include <Array.au3> ; a boring old array Local $aInnerArray = [1, 2, 3, 4, 5] ; a one-element array containing a reference to the other array Local $aOuterArray = [$aInnerArray] ; intention: take a nested array and alter its inner array ; reality: the inner array seems to be getting copied Func ChangeIt(ByRef $aOuter) Local $aInner = $aOuter $aInner = 0 EndFunc ; Expected: [1, 2, 3, 4, 5] ; Actual: [1, 2, 3, 4, 5] ✔ _ArrayDisplay($aInnerArray, 'Before') ; $aOuterArray passed by-ref, should receive reference to $aInnerArray ; Therefore should change $aInnerArray to [1, 2, 0, 4, 5] ChangeIt($aOuterArray) ; Expected: [1, 2, 0, 4, 5] ; Actual: [1, 2, 3, 4, 5] ✘ _ArrayDisplay($aInnerArray, 'After') I suspect that either:
the copy is taking place in the first line of the function (I couldn't find a way to access the inner array without first assigning it to a variable though); or ByRef doesn't propagate into inner levels of the data structure being passed, which seems less likely to me. Could someone please point me in the right direction to get this working as intended?
I misunderstood what was happening on this line:
; WRONG: ; a one-element array containing a reference to the other array Local $aOuterArray = [$aInnerArray] In other languages, would give $aOuterArray a reference to $aInnerArray here. In AutoIt, a copy of $aInnerArray is placed in $aOuterArray. This was the primary source of my misunderstanding. I'm looking for a way, if possible, to store an array reference in another array.
is there any function in Auto it to Remove the repeating strings separated by "," which is present in the array.
thank you in advance!
Okay I know this will be one of those - how stupid can I be when I see the answer but I'm baffled at the current time.
#include <Debug.au3> Local $aArray = [ [10,10],[1,5],[2,0],[3,0],[4,"M"],[5,0],[6,0],[7,0],[8,"M"],[9,0],[10,2] ] _DebugArrayDisplay($aArray, "$aArray") Local $iCount = 0 ;init Local $i For $i = 1 to $aArray If $aArray[$i] = "M" Then $iCount = $iCount + 1 ;debug ;MsgBox($MB_OK + $MB_TOPMOST, "Debug", "$aArray[$i] = " & $aArray[$i] & @CRLF & "$aArray[$i] = " & $aArray[$i]) EndIf Next MsgBox($MB_OK + $MB_TOPMOST, "Info", "M's found = " & $iCount) When I run this it states there are 8 M's in the array.
Getting this error :
(22) : ==> Variable used without being declared.: if $vNumber = 0 Then if ^ ERROR
But I'm sure I have defined the variable, as in the top of my script has
Global $vNumber = 0
How would I go about fixing this?
Hi all, I wasnt active in this Forum forum for Years. 😅
Since I need something with Json in AutoIt i write a little UDF to save a variable to file to read it with another language - and back. After a while until my other script grows i thought - lets integrate all variables wich is possible, because i want have arrays to.
This is my first public UDF in Autoit - normaly my AutoIt scripts are quick an dirty.... - like the examples for this udf. - someone want to write nice examples?
I tried to write this UDF properly, cared for processing speed, low mem consumption as possible, a short code, and a high usability without beeing very familiar with arrays.
What is it for? - convert nearly all types of variables to a json string for saving it in a file or to an ini. Read it back in to a same formated variable and preserv variable types. All array types are supported with nested arrays, the only restriction is ram and array/stringsize - and time if the array is very big. You can use Filters for variable types and some other options.
If anyone found a bug or any suggestions, please post it.
get Json.au3 from here Json.au3