Let’s see how pattern matching appear in other aspect of the language.
More specifically, how it shows up in
Using pattern matching in conjunction with
val can be very useful especially when working with
Tuple or other structures such as
It allows you to extract only the part you need and leave behind the rest using the
However, you have to be extremely careful using pattern matching with
val because you don’t have a
case _ => to catch the not matched cases. Which means, you are going to trigger exception at runtime.
In the last example, if you give anything different than
abc, the code is going to fail. But this failure happens at runtime, not at compile time which can be extremely bad and dangerous.
Use this carefully !