Re: Deleting last item of a List
Re: Deleting last item of a List
- Subject: Re: Deleting last item of a List
- From: jj <email@hidden>
- Date: Sun, 21 Nov 2004 08:56:36 +0100
Title: Re: Deleting last item of a List
More "references" here:
http://developer.apple.com/documentation/AppleScript/Conceptual/AppleScriptLangGuide/AppleScript.102.html
jj
> 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
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