7kyu-form-the-largest.js

// Task

// Given a number , Return _The Maximum number _ could be formed from the digits of the number given .
// Notes

//     Only Positve numbers passed to the function , numbers Contain digits [1:9] inclusive !alt !alt

//     Digit Duplications could occur , So also consider it when forming the Largest !alt

// Input >> Output Examples:

// maxNumber (213) ==> return (321)

// Explanation:

// As 321 is _The Maximum number _ could be formed from the digits of the number *213*** .

// maxNumber (7389) ==> return (9873)

// Explanation:

// As 9873 is _The Maximum number _ could be formed from the digits of the number *7389*** .

// maxNumber (63729) ==> return (97632)

// Explanation:

// As 97632 is _The Maximum number _ could be formed from the digits of the number *63729*** .

// maxNumber (566797) ==> return (977665)

// Explanation:

// As 977665 is _The Maximum number _ could be formed from the digits of the number *566797*** .

// Note : Digit duplications are considered when forming the largest .

// maxNumber (17693284) ==> return (98764321)

// Explanation:

// As 98764321 is _The Maximum number _ could be formed from the digits of the number *17693284*** .
// Playing with Numbers Series
// Playing With Lists/Arrays Series
// For More Enjoyable Katas
// ALL translations are welcomed
// Enjoy Learning !!
// Zizou

function maxNumber(n) {
        const nArray = String(n)
                .split('')
                .sort((a, b) => b - a);
        return Number(nArray.join(''));
}