David Bovill wrote:
This one has bothered me for a while now - is there a good reason for these
two rather strange behaviors of the "union" command for arrays:
1) union with an empty base array always result in empty instead of adding
the new array
2) an array is "empty" even if it is not (null) and has stuff in it (same
with other binary data)
I'm not sure what you mean by #2, but if the content isn't an array then
the issue is probably the same as #1. I think the answer lies in the docs:
"The union command combines the array and testArray. Each key of the
array is checked to see whether there is already an element with that
key in the testArray."
Because each key in the base array is checked and compared, apparently
if your base array is empty, nothing is checked. I'm guessing it would
be similar to this:
repeat for each item i in myVar
-- do stuff
end repeat
If myVar is empty, the repeat loop would not run. Ditto arrays
(apparently) with the "union" command.
--
Jacqueline Landman Gay | [EMAIL PROTECTED]
HyperActive Software | http://www.hyperactivesw.com
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