Multiple generic types in TypeScript

multiple-generic-types.ts

function rollDice(array: any[]): number {
  return Math.floor(Math.random() * array.length);
}

function getRandoms<A, B>(as: A[], bs: B[]): [A, B] {
  const a = as[rollDice(as)];
  const b = bs[rollDice(bs)];
  return [a, b];
}

const [someName, someNumber] = getRandoms<string, number>(names, numbers);
console.log(someName, someNumber);