Two snippets, one works and one doesn't

[aommaster]

Below are two snippets of code, both of which (I believe) should achieve the same thing.

#Include <File.au3>
#include <array.au3>

$folderarray = _FileListToArray("bgm/", "*", 2)
for $folder in $folderarray
    $filelist = _filelisttoarray("bgm/"& $folder, "*.mp3", 1)
    
    for $i=1 to ubound($filelist)-1
        msgbox(0,0, $fileitem)
    Next
Next

And this is the other:

#Include <File.au3>
#include <array.au3>

$folderarray = _FileListToArray("bgm/", "*", 2)
for $folder in $folderarray
    $filelist = _filelisttoarray("bgm/"& $folder, "*.mp3", 1)
    
    for $fileitem in $filelist
        msgbox(0,0, $fileitem)
    Next
Next

However, the second snippet doesn't work. Autoit gives me an error:

Variable must be of type "Object"

for the second nested For..in loop.

What is the reason for this?

[JohnOne]

_filelisttoarray("bgm/"& $folder, "*.mp3", 1) does not return an object, it returns an array.

[Beege]

For In statment is for object collections.

Ya scratch that.. Its for arrays too.

Edited June 26, 2010 by Beege

[JohnOne]

hmmm sorry, you are supposed to be able to use that with an array, I just never have and dont know how.

Edited June 26, 2010 by JohnOne

[picaxe]

However, the second snippet doesn't work. Autoit gives me an error:

Variable must be of type "Object"

for the second nested For..in loop.

What is the reason for this?

You can read but not update/create an array inside a For In Next statement. Edited June 26, 2010 by picaxe

[aommaster]

You can read but not update/create an array inside a For In Next statement.

Oh, I see. So I'm assuming I can't have this line in the for..in loop?

$filelist = _filelisttoarray("bgm/"& $folder, "*.mp3", 1)

Thanks

[picaxe]

The problem is reusing the array $filelist in a For In Next statement, because of the read only limitation. Whereas For To Next is Ok.

Edited June 26, 2010 by picaxe

[aommaster]

Oh okay.

Thanks picaxe