What's the most efficient way to check for duplicates in an array of data using Perl?

Question

I need to see if there are duplicates in an array of strings, what\'s the most time-efficient way of doing it?

Answer 1

Please don't ask about the most time efficient way to do something unless you have some specific requirements, such as "I have to dedupe a list of 100,000 integers in under a second." Otherwise, you're worrying about how long something takes for no reason.