Unset, destroy variable, clear array

[laurin1]

How do I clear or destroy variables, including arrays?

[Thatsgreat2345]

ummm u dont have to clear them you can just set them to something else and it will overwrite it

$variable = 5
MsgBox(0,"variable",$variable)
$variable = 130
MsgBox(0,"variable",$variable)

[laurin1]

ummm u dont have to clear them you can just set them to something else and it will overwrite it

$variable = 5
MsgBox(0,"variable",$variable)
$variable = 130
MsgBox(0,"variable",$variable)

I understand that. However, there are times when I want to make sure the variable is cleared, especially with arrays. From my tests, it appears even arrays can be cleared by setting them $array = ''; but I want to make sure.

[Thatsgreat2345]

yes setting it to blank would clear them but it would be a waste of your time

[laurin1]

yes setting it to blank would clear them but it would be a waste of your time

No, it wouldn't be as waste of my time. I've got an array that is used with a hashing function which is reused, but needs to be cleared before it is reused.

[zalomalo]

This is not enought. If you have custom functions with local arrays you dare to get trash from it.

This is the case in the usefull Call() calls, with a array as argument and 'CallArgArray' in array[0]. You will get all wrong.

Is needed wipe manually, example:

Func __CustomCall($sCadenaLlamada)
;[....]
Local $aArgvs=StringSplit($sArgvs,',',1)
Local $coder=$aArgvs[0]
$aArgvs[0]='CallArgArray'
$CallReturn=Call($sFuncName,$aArgvs)
For $i=0 To $coder ; Wipe Array
 $aArgvs[$i]=Null
Next
If @error=0xDEAD Or @extended=0xBEEF Then
 $coder=0
Else
 $coder=$CallReturn
EndIf
;[....]
Return($coder)

 

Edited February 7, 2015 by zalomalo

[jguinch]

If you want to destroy you array, just set you array variable to 0 :

$aArray = 0

Edit :

Also, you can read the Keyword Dim / Global / Local / Const page in the helpfile :

To erase an array (maybe because it is a large global array and you want to free the memory), simply assign a single value to it:
$aArray = 0
This will free the array and convert it back to the single value of 0

Edited February 7, 2015 by jguinch

[BrewManNH]

Necroing an 8 1/2 year old thread isn't a record, but it's close.

[jguinch]

Ooops...

I didn't look at the OP date... Sorry

[zalomalo]

Sorry a lot, i didnt realise was so old post. Sorry.

But, jguinch is wrong. Is not enough, i have read the documentation and done 1000 test.

Tell me if you are interested in discuss this issue.

Cheers.

Edited February 9, 2015 by zalomalo