/**

* Gives the number at specified digits place

* @param {number} num

* @param {number} place

*/

function getDigit(num, place) {

return Math.floor(Math.abs(num) / Math.pow(10, place)) % 10;

}

/**

* Calculate the number of digits in a given number

* @param {number} num

*/

function digits(num) {

if (num !== 0) {

return Math.floor(Math.log10(Math.abs(num))) + 1;

}

return 1;

}

/**

* Find the maxDigits element in the given array

* @param {number[]} arr

*/

function maxDigits(arr) {

let max = 0;

for (let i = 0; i < arr.length; i++) {

max = Math.max(max, digits(arr[i]));

}

return max;

}

/**

* Its default base10 digit sorting

* @param {number[]} arr

*/

function radixSort(arr) {

let max = maxDigits(arr);

for (let i = 0; i < max; i++) {

let buckets = Array.from({ length: 10 }, () => []);

for (let j = 0; j < arr.length; j++) {

let digitsValue = getDigit(arr[j], i);

buckets[digitsValue].push(arr[j]);

}

arr = [].concat(...buckets);

}

return arr;

}

let a = [234, 364, 12, 64, 21315, 75, 23425];

let b = radixSort(a);

console.log(b);