backbone-baseview.js
function (map) {
            var key;
            for (key in map) {
                if (map.hasOwnProperty(key)) {
                    this._init(key, map[key]);
                }
            }
            return this;
        }
function (map) {
            var key;
            for (key in map) {
                if (map.hasOwnProperty(key)) {
                    this._init(key, map[key]);
                }
            }
            return this;
        }
function ( map ) { var key ; for ( key in map ) { if ( map . hasOwnProperty ( key ) ) { this . _init ( key , map [ key ] ) ; } } return this ; }
Create subviews with a map of configured
subview keys to additional options.
@param  {object} map
@return {SubViewManager}
Create subviews with a map of configured subview keys to additional options .