Hello Joseph,

to be honest, this doesn't sound particularly like functional
programming. The nice thing about functional programming is that you
shouldn't care about such optimization stuff (like breaking out of a for
loop), but instead our optimizer should be clever enough to stop
executing the function once he has enough results. So simply request the
first result and you should be fine. Something like this:


 (for $a at $pos in $seq1
 where $a = $seq2[$pos]
 return $a)[1]

Cheers

Dirk


On 02/27/2017 09:42 PM, Joseph wrote:

Hi,

I have two sets of numbers, and I would like to write a for-loop for

comparison, so that I get only the first match between the numbers. I

was thinking of a double for-loop, but I do not know how to exit the

comparison as soon as I get the first match. Any idea? Thanks.

Joseph

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