As a Perl developer, you’re probably aware of the language’s strengths as a text-processing language and how many computing tasks can be broken down into those types of tasks. You might not realize, though, that Perl is also a world-class list processing language and that many problems can be expressed in terms of lists and their transformations.

Chief among Perl’s tools for list processing are the functions map and grep. I can’t count how many times in my twenty-five years as a developer I’ve run into code that could’ve been simplified if only the author was familiar with these two functions. Once you understand map and grep, you’ll start seeing lists everywhere and the opportunity to make your code more succinct and expressive at the same time.

Source: DZone