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Empty parameter in function
Posted: Fri Apr 03, 2015 9:58 pm
by croivo
I have this function:
Code: Select all
function play item1, item2, item3, item4, item5, item6
repeat with numberVar = 1 to 6
put ("item" & numberVar) into theNameOfHolder
if theNameOfHolder is empty then
answer ("Variable " & theNameOfHolder & " is empty!")
end if
end repeat
end play
Very often I won't call all 6 parameters... So I need to check somehow if some 'item' variables are empty or not.
I tried with this if statemet to check if it's empty, but it's not working... Any ides?
Re: Empty parameter in function
Posted: Fri Apr 03, 2015 10:12 pm
by SparkOut
Quick answer: see "value" in the dictionary.
Re: Empty parameter in function
Posted: Fri Apr 03, 2015 10:57 pm
by croivo
Thanks
Re: Empty parameter in function
Posted: Fri Apr 03, 2015 11:26 pm
by Klaus
Hi croivo,
"play" is a reserved word in LC, so to avoid possible inconvenience
you really should rename your function!
Best
Klaus
Re: Empty parameter in function
Posted: Fri Apr 03, 2015 11:39 pm
by croivo
Klaus wrote:Hi croivo,
"play" is a reserved word in LC, so to avoid possible inconvenience
you really should rename your function!
Best
Klaus
Yes yes I know, at the moment of writing I was not thinking about the name too much...
Re: Empty parameter in function
Posted: Sat Apr 04, 2015 12:16 pm
by SparkOut
Longer answer, download, unzip and investigate this demo
Re: Empty parameter in function
Posted: Tue Apr 14, 2015 4:57 pm
by guenter.g
You can use the functions paramcount() and param() (see in dictionary)
Code: Select all
function play1 item1, item2, item3, item4, item5, item6
repeat with tParam = 1 to paramcount()
if param(tParam) is empty then
answer ("item" & tParam && "is empty!")
end if
end repeat
end play1