Is there a function to see if something is an element of an array?

[Dan Anderson]

I have a long list of IP addresses I am going to be reading in (using
regexps) and then seperating out into a list of IP addresses.  I don't
want the IP addresses to be printed if they are not unique.

Is there a way to check if a string already has an element in a stack?

i.e. push @stack, $_ if is_unique($_, @stack); ?

Or would I have to code that myself?

-Dan


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