Typescript:您能根据参数对象中的单个键的值来获取函数的返回类型吗？

type Params<Obj, Key extends keyof Obj> = {
  key: Key;
  value: Obj[Key];
};

function getValue<Obj, Key extends keyof Obj>(
  obj: Obj,
  params: Params<Obj, Key>
): Obj[Key] {
  return obj[params.key];
}

const user = {
  name: 'John',
  age: 30,
  isAdmin: true,
};

const nameValue = getValue(user, { key: 'name', value: '' }); // nameValue的类型为string
const ageValue = getValue(user, { key: 'age', value: 0 }); // ageValue的类型为number
const isAdminValue = getValue(user, { key: 'isAdmin', value: false }); // isAdminValue的类型为boolean