Designing with functions and types instead of objects

[Jignesh Patel]

Micheal
I am coming from Java background, so I find the following topic very interesting:

"Designing with functions and types instead of objects"


can you elaborate more that what is being covered for this.

[Michał Płachta]

Definitely. The core idea here is that we have only immutable types, without any functions on states. We just model ideas as immutable types.

Then we have pure functions that work on these types (usually more than one at once)—these are behaviours.

Looks pretty simple but these two things alone allow us to model applications in a very readable way, which I show in the book.