Calculate minimal change for cash

changeForCash.js

var change = (cash) => {
  var bills = [2, 5, 10];
  var change = bills.reduce((carry, bill) => {
    carry[bill] = 0;
    return carry;
  }, {});
  var remaining = cash;
  
  bills.forEach((bill, index) => {
    if (index === bills.length - 1) {
      change[bill] = Math.floor(remaining / bill);
      remaining -= change[bill] * bill;
      return;
    }
    
    var restFromNextBill = remaining % bills[index + 1];
    
    while(restFromNextBill && remaining > 0) {
      change[bill]++;
      remaining -= bill;
      restFromNextBill = remaining % bills[index + 1];
    }
  });
  
  if (remaining !== 0) {
    return null;
  }
  
  return change;
}

console.log(change(60 + 11));
console.log(change(60 + 6));
console.log(change(9000000000000000 + 11));
console.log(change(42));
console.log(change(6));
console.log(change(3));

Failed a test exercice asking for this :(