Question

我害怕再次挣扎。我在网上访问了一个名为MTG JSON（http://mtgjson.com/）的资源，这是一个json文件，其中包含每个打印时每张Magic Gathering Card的信息。

现在我拥有的信息是卡片名称，我想获得多元宇宙ID。如果此信息位于AllCards.json文件中，这将非常简单，但它存储在AllSets.json中，这意味着我需要对对象进行一些挖掘。

我对javascript很新，所以到目前为止已经取得了相当大的成就，但我绝对难以接受并且需要帮助。

所以，首先是代码。我目前想出这个来阅读文件：

        $.getJSON("AllSets.json", function(json) {

            console.log(json); 

            Sets = Object.keys(json);
            i = 0;


            while (i < Sets.length){
                currentSet = Sets[i];
                console.log(json.currentSet);
                console.log(currentSet);
                console.log(i);
                i = i + 1;

            }


        });

我已经开始遍历这些设置，以便找到我目前正在使用的名片。

问题在于以下三行：

                console.log(json.currentSet);

                console.log(currentSet);

                console.log(i);

这些是让我头疼的问题，因为i和currentSet都正常工作，返回当前设置和列表中该设置的正确位置。但是json.currentSet返回undefined。

对于那些对JSON结构感兴趣的人：

        "SOI","releaseDate":"2016-04-08","border":"black","type":"expansion","block":"Shadows over Innistrad","booster":[["rare","mythic rare"],"uncommon","uncommon","uncommon","common","common","common","common","common","common","common","common","common","common","land","marketing"],"translations":{"de":"Schatten über Innistrad","fr":"Ténèbres sur Innistrad","it":"Ombre su Innistrad","es":"Sombras sobre Innistrad","pt":"Sombras em Innistrad","jp":"イニストラードを覆う影","cn":"依尼翠暗影","ru":"Тени над Иннистрадом","ko":"이니스트라드에 드리운 그림자"},"cards":[{"artist":"Chase Stone","cmc":3,"colorIdentity":["W"],"colors":["White"],"flavor":"\"We pray to Avacyn on high.\nOn snow-white wings fearless you fly.\nKeep safe our souls. Keep safe our lives.\nMay angels watch us from the skies.\"\n—Children's prayer","id":"c053a8c64d8c2ff2f17e4306344f353b46cd7352","imageName":"always watching","layout":"normal","manaCost":"{1}{W}{W}","multiverseid":409737,"name":"Always Watching","number":"1","rarity":"Rare","text":"Nontoken creatures you control get +1/+1 and have vigilance.","type":"Enchantment","types":["Enchantment"]},{"artist":"Joseph Meehan","cmc":8,"colorIdentity":["W"],"colors":["White"],"id":"80673365be1e340436928050e487afe0d2a70539","imageName":"angel of deliverance","layout":"normal","manaCost":"{6}{W}{W}","multiverseid":409738

任何反馈，批评，建议等都会非常感激，因为每当我想到我迈出一英里时，我都会看到前方10英里。

Answer 1

为什么你不使用那样的东西

cards.forEach(function(e){
   if(e.name == "myName")
      console.log(e.multiverseid);
});

在其他对象中调用对象，MTGJSON

1 个答案: