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Groups > microsoft.public.scripting.vbscript > #12342

Re: Modifying array elements in a dictionary is ineffective?

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"JJ" <jj4public@gmail.com> wrote

| There is no exception or error message. It doesn't matter whether the 
array
| is fixed or variable length.
|
| How could it happen?
|
| Here's the code to reproduce the problem.
|
| set dic = createobject("scripting.dictionary")
| dic.add "key", array(1)
| msgbox "initial = " & dic("key")(0)
| dic("key")(0) = 5
| msgbox "result = " & dic("key")(0) & " (should be 5)"

Set dic = createobject("scripting.dictionary")
dic.add "key", Array(1)
MsgBox "initial = " & dic("key")(0)
A = dic("key")
A(0) = 5
dic("key") = A
MsgBox "result = " & dic("key")(0) & " (should be 5)"

  I don't know the exact mechanics of this phenomenon,
but I've noticed in the past that in some or all cases, you
can't abstract multiple levels from an array. You have to access
the variable. I've never systematically tried to figure it out.
I just noticed over time that in some cases the pointers don't
seem to get through a multiple reference. In those cases I
add the extra step to access the variable directly before using it.

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Modifying array elements in a dictionary is ineffective? JJ <jj4public@gmail.com> - 2021-04-10 07:46 +0700
  Re: Modifying array elements in a dictionary is ineffective? "Mayayana" <mayayana@invalid.nospam> - 2021-04-09 23:05 -0400
    Re: Modifying array elements in a dictionary is ineffective? JJ <jj4public@gmail.com> - 2021-04-10 17:08 +0700
      Re: Modifying array elements in a dictionary is ineffective? "Mayayana" <mayayana@invalid.nospam> - 2021-04-10 08:04 -0400
  Re: Modifying array elements in a dictionary is ineffective? "R.Wieser" <address@not.available> - 2021-04-10 10:39 +0200
  Re: Modifying array elements in a dictionary is ineffective? "Mayayana" <mayayana@invalid.nospam> - 2021-04-11 15:41 -0400
    Re: Modifying array elements in a dictionary is ineffective? JJ <jj4public@gmail.com> - 2021-04-12 09:13 +0700
      Re: Modifying array elements in a dictionary is ineffective? "Mayayana" <mayayana@invalid.nospam> - 2021-04-12 09:51 -0400
        Re: Modifying array elements in a dictionary is ineffective? JJ <jj4public@gmail.com> - 2021-04-13 00:08 +0700

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