使用for循环中的for循环将对象从图形api json推入数组（facebook javascript sdk/open graph）答案

【问题标题】：push objects into array from graph api json with for loop in for loop(facebook javascript sdk/open graph)使用for循环中的for循环将对象从图形api json推入数组（facebook javascript sdk/open graph）
【发布时间】：2014-02-12 15:34:10
【问题描述】：

我想获取所有喜欢帖子的 ID。所以我开始循环遍历 JSON 对象，效果很好。但是如何将不同的帖子点赞分开并将它们推送到数组中呢？

这是我的代码：

var posts = data.posts.data.length; // how much posts (4)    
var likedIDs = [];    

for (var i = 0; i < posts; i++) {

var likes = data.posts.data[i].likes.data.length; //how much likes the post got

    for(var j = 0; j < likes; j++){
        likedIDs.push(data.posts.data[i].likes.data[j].id); //push liked IDs into array
    }

}

我现在的结果是：

["100002767544234", "100002240698218", "100002186226181", "661093262", "100002965256572", "100000484302816", "1328033466", "100002965256572", "100000433187588", "100001859514071", "510954562300442", "1534181150", "100000433187588", "1534181150", "100000470102176", "231605130289758", "1328033466", "661093262", "100002186226181", "100002240698218", "1007746467", "100000433187588", "1216261931", "661093262", "1313025972", "100002240698218", "1534181150", "661093262", "100000328468050", "100001350606484", "100002767544234", "100000306728917", "1534181150", "100000328468050", "1216261931", "661093262", "100002240698218", "100000502074422", "100002559952817", "100000328468050", "100000484302816", "1802439459", "100002240698218", "1328033466"]

现在每个喜欢特定帖子的 ID 都在数组中，但我需要将它们通过帖子索引或在这样的对象中分隔：

[["1313025972", "100002240698218", "1534181150"],["1313025972", "100002240698218", "1534181150"],["1313025972", "100002240698218"],["1313025972"]]

我需要他们检查登录的 fb 用户是否已经喜欢该帖子。

有什么想法吗？提前谢谢，对不起我的英语不好

【问题讨论】：

标签： javascript arrays json facebook-opengraph javascript-objects

【解决方案1】：

我想你想要这个：

[["1313025972", "100002240698218", "1534181150"],["1313025972", "100002240698218", "1534181150"],["1313025972", "100002240698218"],["1313025972"]]

代替：

[{"1313025972", "100002240698218", "1534181150"},{"1313025972", "100002240698218", "1534181150"},{"1313025972", "100002240698218"},{"1313025972"}]

因为这不是一个有效的 javascript 对象。

因此，如果是这种情况，请这样做以获得您想要的：

for (var i = 0; i < posts; i++) {

    var likes = data.posts.data[i].likes.data.length;
    var plikes = [];
    for (var j = 0; j < likes; j++) {
        plikes.push(data.posts.data[i].likes.data[j].id);
    }
    likedIDs.push(plikes);
}

【讨论】：