Question

我一直在用BDD驱动的方式编写一些模块，我选择了这种模式。问题是我的Deck Setup模块中的方法需要实例化并从exports.Deck调用方法。我该怎么做？

exports.Deck_Setup = function() {
    var ShuffledDeck=[];

    var card_dummy= [
        {
            Rank:"Queen",
            Suit: "Hearts"
        },
        {
            Rank:"King",
            Suit: "Hearts"
        },
        {
            Rank:"Ace",
            Suit: "Spades"
        }
    ];

    var constructor = function() {};
        constructor.prototype.generateDECK = function(Card, DeckBuilder){
            var randomNumber = Math.floor(Math.random() * 3);
            console.log(Card, DeckBuilder);
            test = new Card();
            // var new1 = Card.add(card_dummy[0]);          
            // card = new Card(card_dummy[randomNumber]);

        };
            // return (Cards.indexOf(Card) > -1) ? true : false;

    return new constructor();

};

exports.Deck = function() {
    var Cards=[];

    var constructor = function() {};
        constructor.prototype.add = function(Card){
            if (this.size() >= 52){
                return false; //can't add anymore cards
            }
            else {
                Cards.push(Card);
                return true;
            }
        };

        constructor.prototype.remove = function (){
            if (this.size() > 0){
                Cards.pop();
                return true             
            }
            return false;
        };

        constructor.prototype.size = function() {
            return Cards.length;
        };

        //magic method for our cards
        constructor.prototype.includes = function(Card) {
            for (var each in Cards){
                if (JSON.stringify(Cards[each]) === JSON.stringify(Card) ){
                    return true;
                }
            }
            return false;
        };
            // return (Cards.indexOf(Card) > -1) ? true : false;

    return new constructor();

};

Answer 1

如果Deck_Setup需要从Deck访问公开的方法，请使用require：

var deck = require('./Deck')

deck变量将是new constructor

的结果

您也可以通过将设置和Deck工厂设置为同一模块来实现它（您可以导出对象：

 var Deck = {}
 var Deck_Setup = {}
 module.exports = {
    Deck : Deck,
    Deck_Setup : Deck_Setup
 };

您可能应该阅读此博文并找到自己的方式：http://bites.goodeggs.com/posts/export-this/

共享node.js / common.js模块

1 个答案: