Re: Deleting last item of a List
Re: Deleting last item of a List
- Subject: Re: Deleting last item of a List
- From: Nigel Garvey <email@hidden>
- Date: Sun, 21 Nov 2004 00:10:28 +0000
kai wrote on Sat, 20 Nov 2004 15:45:45 +0000:
>On Sat, 20 Nov 2004 13:47:21 +0000, Nigel Garvey wrote:
>
>> I had a look in the AppleScript Language Guide this morning. It says:
>>
>> [quote]
>> beginning | front
>> end | back
>>
>> The beginning and front forms are equivalent and refer to the first
>> insertion point of the container (insertion point 1). The end and back
>> forms are equivalent and refer to the last insertion point of the
>> container (insertion point -1).
>> [/quote]
>>
>> The assertions of equivalence are wrong - at least, with regard to
>> AppleScript Language lists. "Front" and "back" can only be used
>> adjectivally and are equivalent to "first" and "last" respectively.
>Interesting. There seems to be a contextual thing going on here in
>terms of equivalence:
>
>set l to {"a", "b", "c"}
>l's back
>--> "c"
Even more interesting! I said above that "front" and "back" were *not*
equivalent to "beginning" and "end" because I kept getting errors when
trying to use them in that context. With both AS 1.3.7 (current when ASLG
was written) and AS 1.9.1 (in Jaguar):
back of l
--> Error: Can't get after {"a", "b", "c"}
But, on both systems, using Kai's Germanic genitive:
l's back
--> "c"
An equivalence failure of a different kind. :-)
Trying a bit harder, I find that this also works on both systems:
(back) of l
So I withdraw my earlier statement. 'Front' and 'back' *are* equivalent
to 'beginning' and 'end' - or can be - so long as you remember to
compensate for the compiler.
NG
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Applescript-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden