Size of array

[Petrides, M.D. Marian]

Thanks, Richard!  This is very helpful.

On Nov 18, 2007, at 11:24 AM, Richard Gaskin wrote:

> Petrides, M.D. Marian wrote:
>> Speaking of arrays... Am I correct in understanding that Rev only   
>> supports one dimensional arrays or am I misreading the dox?
>
> Rev currently supports associative arrays.  Unlike numerically  
> indexed arrays, associative array keys are not restricted to  
> integers only, and may use just about any string within the  
> acceptable length range (which in Rev I believe is 64k).
>
> Since numerals can be included in such strings, this gives you the  
> ability to use numeric indices with associative arrays as you would  
> with indexed arrays, e.g.:
>
>  get tMyArray[1]
>
> But using strings as keys also opens up whole new worlds of indexing  
> convenience beyond being limited to integers only, such as storing  
> data by user name for example:
>
>  put "Kevin" into tCurrentUser
>  get tSettingsArray[tCurrentUser]
>
> Because nearly any string can be used as a key, you can use notation  
> similar to what you'd expect for multi-dimensional arrays to  
> describe unique elements in associative arrays as well:
>
>  get tMyArray[4,4]
>
> For more on associative arrays in general, the Wikipedia entry is a  
> good starting point:
> <http://en.wikipedia.org/wiki/Associative_array>
>
> For more on Rev's implementation of them, search the docs for  
> "array" or "associative".
>
> -- 
> Richard Gaskin
> Managing Editor, revJournal
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