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Re: what's this loo code?

by clairudjinn (Beadle)
on Feb 04, 2003 at 20:43 UTC ( #232641=note: print w/ replies, xml ) Need Help??

in reply to what's this loo code?

I wrote to Larry about this sort of thing once:

me: The following is from page 75 in the Camel: "List assignment in scalar context returns the number of elements produced by the expression on the right side of the assignment:

$x = ( ($a, $b) = (7,7,7) ); #set $x to 3, not 2

why. how.

Larry on why: Because then you can use it for a boolean value:

while (($a,$b) = somefunc()) { ... }

If it used the number of elements on the left, it would always be true.

Larry on how: It counts them. :-)

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