--- James Edward Gray II <[EMAIL PROTECTED]>
wrote:
> Let's start with the easy one, __END__. There's no
> magic going on
> here, you're program will run fine without it.
> Consider it a note to
> perl that reads, "My code stops here, don't read
> on." I add it to
> programs I post into messages like this, so you
> and/or perl, can tell
> where the code I posted ends.
Ok, that makes sense.
> PRIMES: ... is a label. I'm labeling the first
> loop, so I can make my
> call to next() push that loop along, instead of the
> one I'm currently
> in. By default, next() works on the immediately
> enclosing loop.
>
This makes sense.
>
>
> The reason I didn't use the default variable, is
> because we're talking
> about nested foreach loops here. If they both stuck
> their values in
> the same place, the inside loop would clobber the
> outside loops values
> and I would have no way to access both.
>
Ah, so there is a use for the for which is like
foreach other than a shortcut. Can I do that with
foreach? I see that what you are describing with the
foreach loops above is what was going on with my
nested foreach loops before.
> > next() jumps to the next iteration of the target
> loop, or the enclosing
> loop, by default. Consider this example:
>
> foreach (1..10) {
> next if $_ % 2; # skip to the next number, if this
> one is odd
> print "$_\n"; # this prints just even numbers
> }
>
That is helpful. Though why would you want to use
next? Is is just another way to do something?
> Hope that clears up the rest of your confusions.
>
Yup, for the most part. Thanks.
> James
>
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