code: function validateStoreName(storeName) {
              if (storeName === undefined) {
                  throw new TypeError('Please provide a storename');
              }
  
              if (typeof(storeName) !== 'string') {
                  throw new TypeError('The storename has to be a string');
              }
  
              var chargedStoreName = storeName = ROOT + storeName + '-';
              return chargedStoreName;
          }
docs: generate a store name
  @param  {string} storeName  The name of the store instance
  @return {string}            The generated name
  @throws {TypeError}