text: var GUID = (function () {
  
      function _GUID() {
          return UUIDcreatePart(4) +
              UUIDcreatePart(2) +
              UUIDcreatePart(2) +
              UUIDcreatePart(2) +
              UUIDcreatePart(6);
      };
  
      function UUIDcreatePart(length) {
          var uuidpart = "";
          for (var i = 0; i < length; i++) {
              var uuidchar = parseInt((Math.random() * 256), 10).toString(16);
              if (uuidchar.length == 1) {
                  uuidchar = "0" + uuidchar;
              }
              uuidpart += uuidchar;
          }
          return uuidpart;
      }
  
      return {
          newGuid: _GUID
      };
  
  })();
  
  var dataSource = (function () {
  
      var tablesStorageKey = "60AE0285-40EE-4A2D-BA5F-F75D601593DD";
      var globalData = [];
      var tables = [
          {
              Id: 5,
              Name: "Contact",
              Schema: [
                {
                    k: "name",
                    t: 1
                },
                {
                    k: "companyname",
                    t: 1
                },
                {
                    k: "position",
                    t: 1
                }
              ],
              Created: "2016-08-12T07:32:46.69"
          },
          {
              Id: 6,
              Name: "Profile",
              Schema: [
                {
                    k: "Name",
                    t: 1
                },
                {
                    k: "Age",
                    t: 2
                },
                {
                    k: "Gender",
                    t: 4
                },
                {
                    k: "Rating",
                    t: 3
                },
                {
                    k: "Created",
                    t: 5
                }
              ],
              Created: "2016-09-28T21:53:40.19"
          }
      ];
  
      function  _loadData(){
          globalData = JSON.parse(localStorage[tablesStorageKey] || "[]");
      }
  
      function _save()
      {
          localStorage[tablesStorageKey] = JSON.stringify(globalData);
      }
  
      function _getSchema(tableId) {
          for (var t = 0; t < tables.length; t++)
              if (tableId === tables[t].Id) return tables[t].Schema;
      }
  
      function _find(data) {
          var skip = data.start;
          var take = data.length;
          return {
              draw: data.draw,
              recordsTotal: globalData.length,
              recordsFiltered: globalData.length,
              data: globalData.slice(skip, take + skip)
          };
      }
  
      function _insert(data) {
          var id = GUID.newGuid();
          globalData.push([id, data.Name, data.Age, data.Gender, data.Rating, data.Created]);
          _save()
          return {
              IsOk: true,
              id: id
          };
      }
  
      function _update(data) {
          for (var t = 0; t < globalData.length; t++)
              if (data._id === globalData[t][0]) {
                  globalData[t] = [data._id, data.Name, data.Age, data.Gender, data.Rating, data.Created];
                  _save()
                  return {
                      IsOk: true
                  };
              }
          return {
              IsOk: false
          };
      }
  
      function _delete(id) {
          for (var t = 0; t < globalData.length; t++)
              if (id === globalData[t][0]) {
                  globalData = globalData.filter(item => item !== globalData[t]);
                  _save();
                  return {
                      IsOk: true
                  };
              }
          return {
              IsOk: false
          };
      }
  
      _loadData();
  
      return {
          getSchema: _getSchema,
          find: _find,
          insert: _insert,
          update: _update,
          delete: _delete
      };
  
  })();
  