Javascript-デザインモードのモジュールモード

/**
 *
 */
var someModule = (function(){

    //private attributes
    var privateVar = 5;
    
    //private methods
    var privateMethod = function(){
        return 'Private Test';
    };
    
    return {
        //public attributes
        publicVar: 10,
        //public methods
        publicMethod: function(){
            return ' Followed By Public Test ';
        },
        
        //let's access the private members
        getData: function(){
            return privateMethod() + this.publicMethod() + privateVar;
        }
    }
})(); //the parens here cause the anonymous function to execute and return
someModule.getData();