function(regionConfig, DefaultRegionClass) {
      if (_.isString(regionConfig)) {
        return this._buildRegionFromSelector(regionConfig, DefaultRegionClass);
      }
  
      if (regionConfig.selector || regionConfig.el || regionConfig.regionClass) {
        return this._buildRegionFromObject(regionConfig, DefaultRegionClass);
      }
  
      if (_.isFunction(regionConfig)) {
        return this._buildRegionFromRegionClass(regionConfig);
      }
  
      throw new Marionette.Error({
        message: 'Improper region configuration type.',
        url: 'marionette.region.html#region-configuration-types'
      });
    }
function(regionConfig, DefaultRegionClass) {
      if (_.isString(regionConfig)) {
        return this._buildRegionFromSelector(regionConfig, DefaultRegionClass);
      }
  
      if (regionConfig.selector || regionConfig.el || regionConfig.regionClass) {
        return this._buildRegionFromObject(regionConfig, DefaultRegionClass);
      }
  
      if (_.isFunction(regionConfig)) {
        return this._buildRegionFromRegionClass(regionConfig);
      }
  
      throw new Marionette.Error({
        message: 'Improper region configuration type.',
        url: 'marionette.region.html#region-configuration-types'
      });
    }
function ( regionConfig , DefaultRegionClass ) { if ( _ . isString ( regionConfig ) ) { return this . _buildRegionFromSelector ( regionConfig , DefaultRegionClass ) ; } if ( regionConfig . selector || regionConfig . el || regionConfig . regionClass ) { return this . _buildRegionFromObject ( regionConfig , DefaultRegionClass ) ; } if ( _ . isFunction ( regionConfig ) ) { return this . _buildRegionFromRegionClass ( regionConfig ) ; } throw new Marionette . Error ( { message : 'Improper region configuration type.' , url : 'marionette.region.html#region-configuration-types' } ) ; }
Build an instance of a region by passing in a configuration object and a default region class to use if none is specified in the config.  The config object should either be a string as a jQuery DOM selector, a Region class directly, or an object literal that specifies a selector, a custom regionClass, and any options to be supplied to the region:  ```js { selector: "#foo", regionClass: MyCustomRegion, allowMissingEl: false } ```
Build an instance of a region by passing in a configuration object and a default region class to use if none is specified in the config . The config object should either be a string as a jQuery DOM selector a Region class directly or an object literal that specifies a selector a custom regionClass and any options to be supplied to the region : js { selector : #foo regionClass : MyCustomRegion allowMissingEl : false }