JavaScript prove safety that offer an array of every day lined the minimum number of

Enter a positive integer array, the array of all the numbers arranged in a number spliced together, the splice can print out all numbers smallest one.
3,32,321 input array} {e.g., print the minimum number of three numbers can be arranged to 321,323.

The core ideas:

ab>ba 则 a>b

function PrintMinNumber(numbers)
{
    numbers.sort(function(n1, n2){    //用于对数组的元素进行排序
        if(n1 + '' + n2 > n2 + '' + n1){
            return 1;
        }else if(n1 + '' + n2 < n2 + '' + n1){
            return -1;
        }else{
            return 0;
        }
    });
    return numbers.join('');
}

function PrintMinNumber(numbers)
{
    // write code here
    numbers.sort(function(a,b){
        var c1 = `${a}${b}`;
        var c2 = `${b}${a}`;
        return c1 > c2;
    });
    var min = '';
    numbers.forEach((i) => min += i);
    return min;
}