javascript - 将项目推送到嵌套数组

Question

下面是我的数组:

[{
    "album_desc": "Test",
    "id": 1,
    "album_title": "Test",
    "ImageName": "image004.png",
    "album_pics": [{
        "media_type": "image/png",
        "last_modified_date": 1428913015000,
        "thumnail_pic_loc": "image004.png",
        "large_pic_loc": "image004.png",
        "filter_type": "image/png",
        "pic_id": "d5bd"
    }]
}]

我需要将数组的结构更改为如下所示。如何在上传图像时动态使用它？如何将数组插入数组？有什么建议吗？

{
    "album_desc": "Album 1",
    "id": "399234688",
    "album_title": "Album 1",
    "album_pics": [{
        "media_type": "image",
        "last_modified_date": "2015-01-16T00:40:39.071Z",
        "thumnail_pic_loc": "3fe2a54346b3d54e-pinaki2.jpg",
        "large_pic_loc": "3fe2a54346b3d54e-pinaki2.jpg",
        "filter_type": "image/jpeg",
        "pic_id": "d5bc"
    }, {
        "media_type": "image",
        "last_modified_date": "2015-01-16T00:40:39.071Z",
        "thumnail_pic_loc": "3fe2a54346b3d54e-pinaki3.jpg",
        "large_pic_loc": "3fe2a54346b3d54e-pinaki3.jpg",
        "filter_type": "image/jpeg",
        "pic_id": "d5bd"
    }],
}

Answer 1

我的理解是，您想要向 album_pics 数组添加一个新元素。

var myArray = [{"album_desc": "Test",...}]

var newPicture = {"media_type": "image",... }

myArray[0].album_pics.push(newPicture);

myArray 是您的原始数组，newPicture 是您要添加到 album_pics 数组中的图片。在此示例中，我修改了 myArray 的第一个元素，但它可以是任何元素，例如:myArray[5].album_pics.push(newPicture)