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

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.

CodePudding user response：

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));

CodePudding user response：

You could sort by default sorting and reverse the array, like

return  value
    .toString()
    .split('')
    .sort()     // sort by string asc
    .reverse()
    .join('');

or sort with a callback descending and omit reversing.

return  value
    .toString()
    .split('')
    .sort((a, b) => b - a)
    .join('');