How to return array keys into another array
adrian voss
adrian.voss at ntlworld.com
Fri Jun 11 10:12:42 UTC 2004
Yes thanks. Been using them quite a bit.
Regards
Adrian
-----Original Message-----
From: squeak-dev-bounces at lists.squeakfoundation.org
[mailto:squeak-dev-bounces at lists.squeakfoundation.org] On Behalf Of stéphane
ducasse
Sent: 11 June 2004 08:15
To: The general-purpose Squeak developers list
Subject: Re: How to return array keys into another array
Hi adrian
do you know the free smalltalk books?
http://www.iam.unibe.ch/~ducasse/FreeBooks.html
STef
On 11 juin 04, at 01:03, adrian voss wrote:
> Hi, thank you all for the advice. Reason for using the indices is
> that in this instance they refer to the seat numbers in a fictitious
> reservation program for a course I am on. The question asked for
> arrays to be used.
>
> I really hope that there is an easier way to do this because this had
> me stumped.
>
> Again, thanks for your time.
>
> Adrian
>
> -----Original Message-----
> From: squeak-dev-bounces at lists.squeakfoundation.org
> [mailto:squeak-dev-bounces at lists.squeakfoundation.org] On Behalf Of
> Tim Rowledge
> Sent: 10 June 2004 20:16
> To: squeak-dev at lists.squeakfoundation.org
> Subject: Re: How to return array keys into another array
>
> Avi Bryant <avi at beta4.com> wrote:
>
>>> How about
>>> a2 := a select:[:i| i = 'free]
>>
>> No, because he wanted the indices, not the actual values.
> D'h. Missed the key bit.
> However, I
>> suspect this isn't the whole story; it's unusual enough to deal with
>> array indices directly that I wonder what the final goal is here, and
>> whether there might be some better way of achieving it...
> It's pretty unlikely that a sensible design would need the indices.
>
> Tell us more about the problem - this is probably a good learning
> opportunity.
>
>
> tim
> --
> Tim Rowledge, tim at sumeru.stanford.edu, http://sumeru.stanford.edu/tim
> Useful random insult:- Answers the door when the phone rings.
>
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