Groups | Search | Server Info | Login | Register

Groups > alt.comp.lang.vbscript > #29

Re: VBScript dictionary delete by index ? solved

From "R.Wieser" <address@is.invalid>
Newsgroups alt.comp.lang.vbscript, alt.comp.os.windows-xp, alt.windows7.general
Subject Re: VBScript dictionary delete by index ? solved
Date 2025-11-08 09:07 +0100
Organization A noiseless patient Spider
Message-ID <10emtp7$2eep5$1@dont-email.me> (permalink)
References <10eho89$10spk$1@dont-email.me> <10ei9rv$15pcl$1@dont-email.me> <10eiacg$15l4r$6@toylet.eternal-september.org> <10eidms$16s68$1@dont-email.me> <10emept$2av65$1@toylet.eternal-september.org>

Cross-posted to 3 groups.

Show all headers | View raw

Mr. Man-wai Chang,

>> If I can use a "for each" in reverse than I already have the key (and 
>> don't
>> need the index)
>
> You can first sort oDict in reverse order, but that's quite silly. :)

Yes, and it would not solve anything. :-|   (the contents are not the 
problem)

> > I just realized I took it for granted that deleting a
> > key-item pair while inside a standard "for each" loop
> > would cause an error/crash (looping beyond the last item).
>
> That surely could be a problem for linked list, not array index.

I'm not at all sure about the first, as the "next" pointer (for the 
iteration) doesn't need to be replaced (assuming that its retrieved and 
stored somewhere as part of advancing to the current item).

The problem with a "for i=0 to dict.count-1" loop is that it both will skip 
the item after the one thats being removed, and it will not adjust the "upto 
here" part of the for loop to the new size of the array.

Looping backwards makes both of those problems disappear.

... and thats what my head was - unneeded - stuck on. :-\

Regards,
Rudy Wieser

Back to alt.comp.lang.vbscript | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

VBScript dictionary delete by index ? "R.Wieser" <address@is.invalid> - 2025-11-06 10:03 +0100
  Re: VBScript dictionary delete by index ? "R.Wieser" <address@is.invalid> - 2025-11-06 15:03 +0100
    Re: VBScript dictionary delete by index ? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2025-11-06 22:12 +0800
      Re: VBScript dictionary delete by index ? solved "R.Wieser" <address@is.invalid> - 2025-11-06 16:09 +0100
        Re: VBScript dictionary delete by index ? solved "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2025-11-08 11:52 +0800
          Re: VBScript dictionary delete by index ? solved "R.Wieser" <address@is.invalid> - 2025-11-08 09:07 +0100
            Re: VBScript dictionary delete by index ? solved "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2025-11-08 22:55 +0800
              Re: VBScript dictionary delete by index ? solved "R.Wieser" <address@is.invalid> - 2025-11-08 16:49 +0100
  Re: VBScript dictionary delete by index ? C-Sharp User <csharp@invalid.invalid> - 2025-11-06 22:40 +0000
    Re: VBScript dictionary delete by index ? "R.Wieser" <address@is.invalid> - 2025-11-07 09:15 +0100

csiph-web