Split the number into N parts such that difference between the smallest and the largest part is minimum

splitInteger.js

var splitInteger = function(num, parts) {
  const remainder = num % parts
  const value = (num - remainder) / parts
  return Array(parts).fill(value).fill(value + 1, 0, remainder);
}

console.log(splitInteger(25,5)) 

// Input: X = 25, N = 5
// Output: 5 5 5 5 5