As far as I'm aware pattern matching is commonly used in most functional languages (including haskell). Here is the page on pattern matching in haskell from the

As far as I'm aware pattern matching is commonly used in most functional languages (including haskell). Here is the page on pattern matching in haskell from the haskell wikibook: https://en.wikibooks.org/wiki/Haskell/Pattern_matching https://en.wikibooks.org/wiki/Haskell/Pattern_matching