Сортировка адресов на клиенте

gistfile1.js

      var addresses = ['Метрополь', '2', '1', '2a', '1/10', '2b/21/3', '4', '3в', '11b', '3b/4', '№3a/4'];
      
      function compareAddresses(adr1, adr2) {
        var nums = getNumberArray(adr1);
        var nums2 = getNumberArray(adr2);
        
        var res = compareArrays(nums, nums2);
        
        if (res == 0) {
          res = compareStrings(adr1, adr2);
        }
        
        return res;
      }
      
      function getNumberArray(str) {
        var arr = str.split(/\D+/g);
        var result = [];
        
        for(var i in arr) {
          var num = parseInt(arr[i]);
          
          if (!isNaN(num)) {
            result.push(num);
          }
        }
        
        return result;
      }
      
      function compareArrays(a1, a2) {        
        var maxLen = a1.length < a2.length ? a1.length : a2.length;
                        
        var cmp = 0;
        var i = 0;
          
        while(cmp == 0) {
          cmp = a1[i] - a2[i];
          i++;
          
          if (i == maxLen) {
            break;
          }
        }
         
        if (cmp == 0) {
          cmp = a1.length - a2.length;
        }
        
        return cmp;
      }
      
      function compareStrings(a1, a2) {
        var s1 = removeAllButLetters(a1);
        var s2 = removeAllButLetters(a2);
                
        if (s1 == s2) return 0;
        if (s1 > s2) return 1;
        return -1;
      }
      
      function removeAllButLetters(str) {
        return str.replace(/[^a-zA-Zа-яА-Я]+/g,'');
      }
      // ["Метрополь", "1", "1/10", "2", "2a", "2b/21/3", "3в", "№3a/4", "3b/4", "4", "11b"]
      addresses.sort(compareAddresses);