in reply to Re: How to make sure no elements from @array are inside $scalar
in thread How to make sure no elements from @array are inside $scalar

Can I use

 $text=~/_9(...)/ and none {$1 eq $_} @$sites

instead of

 $text=~/_9(...)/,none {$1 eq $_} @$sites

here ?

What's the difference between 'and' and 'comma' here

Replies are listed 'Best First'.
Re^3: How to make sure no elements from @array are inside $scalar
by Loops (Curate) on Nov 15, 2014 at 11:48 UTC

    Yes, you can use "and" to much the same effect in this case. In fact it would stop a warning if the match failed and $1 was left undefined. And that's because the comma operator does not short circuit as "and" does; both expressions will be evaluated whether the first is true or false. But it can be useful.