--- James Edward Gray II <[EMAIL PROTECTED]>
wrote:
> On Mar 7, 2004, at 7:07 PM, Stuart White wrote:
>
> > 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.
>
> I believe this is the remaining source of your
> confusion and I bet I
> can make it go away by explaining one simple fact:
> Perl allows the
> words for and foreach to be used interchangeably,
> they mean exactly the
> same thing. That help?
>
Yup. thanks.
> >>> 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?
>
> It could be sure. There's generally more than one
> way to do things,
> especially in Perl. In the above example, you could
> just put the
> print() call inside a conditional. However, there
> are times when doing
> something without next() would be a lot more work.
> My nested for loops
> to find prime numbers is probably a decent example
> of that.
>
I see.
> Hope that helps.
>
> James
>
Thanks all for your patience and assistance.
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