A base class for JavaScript projects

JS Class

​var myClass = function(){
    
    var privateVar = 'do not look at me from the outside';

    return {
        
        publicVar: 'access me from anywhere',
        
        fname: '',
        
        init: function(fname){
            this.fname = (fname !== undefined) ? fname : 'guest';
            console.log('you\'ve kicked this class off, ' + this.fname);            
        },

        getPrivateVar: function(){
            return privateVar;            
        }  
        
    }     
        
}();
        
myClass.init(); // you've kicked this class off, guest 

myClass.init('ben'); // you've kicked this class off, ben

console.log(myClass.publicVar); // access me from anywhere

console.log(myClass.privateVar); // undefined

console.log(myClass.getPrivateVar()); // do not look at me from the outside

this.fname = (fname !== undefined) ? fname : 'guest';

Can be done as:

this.fname = fname || "guest";