Why can't codewars accept my answer? Im trying to practice in codewars using javascript

I am a newbie and Im trying to practice codes with codewars. The problem is I already solve the problem, but it wont accept my codes.

Here’s the problem:

Here’s my solution:

function descendingOrder(n){    
  var result =(n.toString().split('').reverse().sort(function(a, b){return b-a}).join(''));     
   parseFloat(result); 
   return result; 
  
}
console.log(descendingOrder(12345));

What I tried is of course removing the parameter in function which is 12345 since codewars has already done it.

Kindly need your advice. Thanks in advance!!

>Solution :

You have some unnecessary functionality (like reverse()) in your code. In addition I understood you’re dealing with integers, not floats:

const descendingOrder = (n) => {    
  const result = n.toString().split('').sort((a, b) => b - a).join('');     

  return parseInt(result); 
};

console.log(descendingOrder(123454821));