exclude Dead from searches that return Cat

type Cat = {
  name: string;
  status: "alive" | "dead";
}

const isAlive = (cat: Cat) => cat.status === "alive"

const cats: Array<Cat> = [
  {
    name: "Felix the Cat",
    status: "alive"
  },
{
    name: "Dead",
    status: "dead"
  },
]

const aliveCats = cats.filter(isAlive)