match(
  cond1, then1,
  cond2, then2,
  ....,
  // default=identify
)

const match = (...fns: Function[]) => function <T>(x: T){
  for(const [cond, fn] of chunk(2, fns)) {
    if(!fn) return cond(x); // if `fns` has an odd number of item, the last function is default
    if(cond(x)) return fn(x);
  }
  return x // if `fns` has an even number of item, just return arg 
}

const users = [
  { name: "Kim", gender: "male" },
  { name: "Lee", gender: "female", grade: "doctor" },
  { name: "Park", gender: null },
];

console.log(
  pipe(
    users,
    map(match(
      (user) => user.grade === "doctor", ({ name }) => `Dr. ${name}`,
      (user) => user.gender === "female", ({ name }) => `Ms. ${name}`,
      (user) => user.gender === "male", ({ name }) => `Mr. ${name}`,
      ({ name }) => `Dear ${name}`,
    )),
    toArray,
  ),
); // ["Mr. Kim", "Dr. Lee", "Dear Park"]

const data = [1, "a", { a: "1" }];
console.log(
  pipe(
    data,
    match(
      isNumber, String,
      isObject, JSON.stringify,
    )
    toArray,
  )
); // ["1", "a", "{ a: "1" }"]