http://www.perlmonks.org?node_id=355059


in reply to When would you choose foreach instead of map?

And of course if you wanted to alter the array in place (not creating a new one) and also wanted to do it in one succinct line (as your map does), you could just say:

$_ *= 2 for @array;

------------------------------------------------------------
"Perl is a mess and that's good because the
problem space is also a mess.
" - Larry Wall