leetcode-1689.js

var minPartitions = function(n) {
  const decibinary = calculateDecibinary(n)
  const res = parseInt(n, 10) - parseInt(decibinary, 10)
  console.log(n, decibinary, res)
  if (res === 0) return 1
  
  return 1 + minPartitions(res.toString())
};

function calculateDecibinary(n) {
  let result = ""
  for (let i=0; i < n.length; i++) {
    if (n[i] !== "0") {
      result += "1"
    } else {
      result += "0"
    }
  }
  
  return result
}

No funciona con este caso: "27346209830709182346"