How do I filter an array based on object's property with multiple OR statements

Question

The question was difficult to put into words, but here is my situation. I have several Monster objects in an array called monsters. Each monster has a name

Answer 1

You could do something like:

let monsters: [Monster] = ...

let monsterNames: [String] = ...

let filteredMonsters = monsters.filter { monsterNames.contains($0.name) }

This doesn't perform all that well, since it will go over the names array up to n times for each monster, but if your names arrays is small, this won't be a problem.