var array=[456,9,78,23,1]
function sort(ary){
  var long=0
  ary=ary.map(function(n){return n.toString()})
  for(n in ary){
    (ary[n].length>long)?long=ary[n].length:long
  }
  for(n in ary){
    if(ary[n].length<long){
      var l=long-ary[n].length
      for(var d=0;d<l;d++){
        ary[n]+="x"
      }
    }
  }
  return parseInt(quickSort(ary).toString().replace(/,/g,"").replace(/x/g,""))
}
function quickSort(arr) {
    if(arr.length <= 1) return arr;
    var pivotIndex = Math.ceil(arr.length / 2);
    var pivot = arr.splice(pivotIndex, 1)[0];
    var left = [], right = [];
    for(var i=0; i< arr.length; i++) {
        arr[i] < pivot ? right.push(arr[i]) : left.push(arr[i]);
    }
    return quickSort(left).concat([pivot], quickSort(right));
};

sort(array)