var Publication = new Interface('Publication', ['getIsbn', 'setIsbn',...]); //接口
var Book = function(isbn, title, author){this.setIsbn(isbn);this.setTitle(title);this.setAuthor(author);
};
Book.prototype = {checkIsbn: function(){...},getIsbn: function(){return this.isbn,}, //取值器setIsbn: function(isbn){this.isbn=isbn;}, //赋值器
    ...
};

var Publication = new Interface('Publication', ['getIsbn', 'setIsbn',...]); //接口
var Book = function(isbn, title, author){this.setIsbn(isbn);this.setTitle(title);this.setAuthor(author);
};
Book.prototype = {checkIsbn: function(){...},getIsbn: function(){return this._isbn,}, //取值器setIsbn: function(isbn){this._isbn=isbn;}, //赋值器
    ...
};

var Book = function(newIsbn, newTitle, newAuthor){var isbn, title, author; //私有function checkIsbn(isbn){} //私有this.getIsbn = function(){ //特权return isbn;};this.setIsbn = function(newIsbn){ //特权if(!checkIsbn(ewIsbn)) throw new Error('Book: invalid ISBN.');isbn = newIsbn;}
};Book.prototype = { display: function(){ //公有
        ...};
};

var Book = (function(){var numOfBooks = 0; //private static attributefunction checkIsbn(){...}; //private static methodreturn function(newIsbn, newTitle, newAuthor){var isbn, title, author; //private attribute//privileged methodsthis.getIsbn = function(){return isbn;};this.setIsbn = function(){...};numOfBooks ++;if(numOfBooks > 50){throw new Error('Book: Only 50 instances of Book can be created.');}this.setIsbn(newIsbn);...};
})();//Public static method
Book.convertToTitleCase = function(){...
};//Public, non-privileged methods
Book.prototype = {display: function(){...}
};