whole_func_string: function(event) {
        var target = event.target;
        var object = JSON.parse(Storage.getInstance().getItem(target.getAttribute(this.storageKey))),
          data = object.data,
          filename = object.filename,
          mimeType = object.mimeType,
          fileExtension = object.fileExtension,
          merges = object.merges,
          RTL = object.RTL,
          sheetname = object.sheetname;
        this.export2file(data, mimeType, filename, fileExtension, merges, RTL, sheetname);
      }
func_code_string: function(event) {
        var target = event.target;
        var object = JSON.parse(Storage.getInstance().getItem(target.getAttribute(this.storageKey))),
          data = object.data,
          filename = object.filename,
          mimeType = object.mimeType,
          fileExtension = object.fileExtension,
          merges = object.merges,
          RTL = object.RTL,
          sheetname = object.sheetname;
        this.export2file(data, mimeType, filename, fileExtension, merges, RTL, sheetname);
      }
func_documentation_string: Click handler for export button "download"
  @memberof TableExport.prototype