Re: Addressing List Items
Re: Addressing List Items
- Subject: Re: Addressing List Items
- From: Michelle Steiner <email@hidden>
- Date: Wed, 04 May 2011 08:25:08 -0700
On May 4, 2011, at 8:09 AM, Marconi wrote:
> I've never used lists before. I've googled and cannot find an answer to my very basic question.
>
> How does one populate an empty list? What is the proper way to address list items?
You copy it to the end of the list:
set my_list to {}
copy "1" to end of my_list
copy "apple" to end of my_list
my_list
--> {"1", "apple"}
> set EditArray to {}
> set aValue to 0 -- for this example
>
> repeat with LineNumber from 1 to 5
> --here I would calculate the value of EditStart
> set EditStart to aValue
>
> -- here I would calculate the value of EditEnd
> set EditEnd to aValue
> set item LineNumber of EditArray to {EditStart, EditEnd}
>
> set LineNumber to LineNumber + 1
> end repeat
>
> Can't set Item 1 of {} to {0, 0}.
>
>
> Apparently, "Item x of EditArray" is not the proper way to refer to the first record of EditArray. Neither is "record x of EditArray"
>
> What's the proper way to address records of a list?
Records and lists are two different things.
You address list items by their indexes, and records by their labels:
set list_of_stuff to {1, "apple", 3, "pear", true, 4, "banana", 5}
item 5 of list_of_stuff
--> true
set record_of_stuff to {alpha:1, bravo:"apple", charlie:3, delta:"pear", echo:true, foxtrot:"banana", golf:5}
delta of record_of_stuff
--> "pear"
-- Michelle
--
Do not go out and kill Klansmen, no matter how much they deserve it. It would be funny as hell to see on the evening news how a bunch of guys wearing bright pink robes and hoods started burning triangles in their yards for a change.
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