js-dsa-utils/src/math.js

Basic DSA utilities (sorting, searching, stack, queue,linked list etc.)

function factorial(n) {
  return n <= 1 ? 1 : n * factorial(n - 1);
}

function fibonacci(n) {
  if (n <= 1) return n;
  return fibonacci(n - 1) + fibonacci(n - 2);
}

module.exports = { factorial, fibonacci };