In part 3, Andrzej turns to some practical use cases for type erasure.

Type Erasure, Part 3

by Andrzej Krzemieński

From the article:

Who needs type erasure?

... Here is what I learned from my experience. There are a couple of trade-offs to be made when using or not type erasure: run-time efficiency vs compilation time, run-time efficiency vs binary size. The choice is not obvious. Even in programs that need to be fast, not every part of the program needs to be fast. Some portions, like the interaction with the user, can be slow, and for these parts you can apply different trade-offs.