Re: Readline using foreach and while


Quoth "szr" <szrRE@xxxxxxxxxxxxxxx>:

Actually the behaviors of "for (@ary)" and "for (@ary, ())" do seem
consistant if you really think about it. The resulting list is what it
iterates over (from the first element, to what ever *count* is... in the
former case *count* come fro mthe array, and since the condition is
checked at the start of each iteration, if the array is added to, the
count is incremented.

In the latter case, a new list is created from contents of @ary + an
empty list, which gives you a new list, which contains the values of
@ary, but is a new seperate list, and thus is not effected by changes to
@ary because it has it's own copy of @ary's values.

OK, now explain to me why

my @ary = qw/a b c/;
print map { /c/ and push @ary, 'd'; $_ } @ary;

*doesn't* work like that :).

Ben

.