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Re: list assignment to list in scalar context (boolean)

by tye (Sage)
on Nov 09, 2012 at 03:45 UTC ( #1003054=note: print w/replies, xml ) Need Help??

in reply to list assignment to list in scalar context

List assignment in a scalar context returns the number of items in the right-hand side because that is extremely useful as a Boolean test, as shown in your own example:

while( my( $k, $v ) = each %h ) {

You wouldn't want that loop to terminate early just because one of the values in %h was false.

- tye        

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