嗨，我有以下 JSON 格式
{
"data": [
{
"category": {
"documentId": "c8kr0cv012vtr8vm3iug",
"title": "Art"
},
"subcategories": [
{
"documentId": "c8kr7nv012vtr8vm3l8g",
"title": "Architecture"
},
{
"documentId": "c8kr7nv012vtr8vm3lag",
"title": "Dance"
},
{
"documentId": "c8kr7nv012vtr8vm3lbg",
"title": "Fashion"
}
]
},
{
"category": {
"documentId": "c8kr0cv012vtr8vm3iqg",
"title": "Business"
},
"subcategories": [
{
"documentId": "c8kr3d7012vtr8vm3jjg",
"title": "Crypto"
},
{
"documentId": "c8kr3d7012vtr8vm3jj0",
"title": "Finance"
},
{
"documentId": "c8kr3d7012vtr8vm3jkg",
"title": "Marketing"
}
]
}
]
}
我的移動螢屏上有標簽視圖，因此用戶可以通過選擇取消選擇同時選擇多個子類別，所以如果我從 Art 中選擇 2 個子類別，從 Bussines 中選擇 2 個子類別，那么預期的后有效負載應該如下所示
{
"data": [
{
"category": "c8kr0cv012vtr8vm3iug",
"subcategories": [
"c8kr7nv012vtr8vm3l8g",
"c8kr7nv012vtr8vm3lag"
]
},
{
"category": "c8kr0cv012vtr8vm3iqg",
"subcategories": [
"c8kr3d7012vtr8vm3jjg",
"c8kr3d7012vtr8vm3jj0"
]
}
] }
所以我的代碼如下
const tempDefaultPayload = dataPayload.map(x => {
if (x.category) {
x.subcategories?.push(subcategory);
if (userData?.userInterests?.map(v => v.category.documentId === category)) {
const arrayNewData: any = [];
const newData: any = userData?.userInterests?.map(i =>
i.subcategories?.map(k => {
arrayNewData.push(k?.documentId);
return k?.documentId;
}),
);
x.subcategories?.push(...arrayNewData);
}
return x;
}
return x;
})
當我在上面運行代碼有效負載時未正確傳遞
[
{
"category": "c8kr0cv012vtr8vm3iug",
"subcategories": [
"c8kr7nv012vtr8vm3l8g",
"c8kr7nv012vtr8vm3lag",
"c8kr3d7012vtr8vm3jjg",
"c8kr3d7012vtr8vm3jj0"
]
},
{
"category": "c8kr0cv012vtr8vm3iqg",
"subcategories": [
"c8kr7nv012vtr8vm3l8g",
"c8kr7nv012vtr8vm3lag",
"c8kr3d7012vtr8vm3jjg",
"c8kr3d7012vtr8vm3jj0"
]
}
]
它正在傳遞兩個陣列中的所有選定子類別任何想法我該如何解決這個問題？
uj5u.com熱心網友回復：
如果您在陣列中有選定的標簽 ID，selectedTags并且您的 json 作為一個名為的變數data：
const tempDefaultPayload = {
data: data.data.map(x => {
"category": x.category.documentId,
"subcategories": x.subcategories.map(subcat =>
subcat.documentId).filter(item => selectedTags.includes(item))
})
}
游樂場示例
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標籤：javascript 数组 反应式 数组列表 映射
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