[英]Filter Nested array of objects in angular java script
嗨,我有以下數組。 我想根據用戶輸入過濾這個數組。我在互聯網上搜索它,通過了許多關於堆棧溢出的解決方案,我也瀏覽了數組的文檔,但我沒有得到任何解決方案。 請幫忙...
{
"data": [
{
"categoryId": "1",
"categoryName": "Pens",
"subcat": [
{
"SubCatId": "1",
"SubCategoryName": "Classic Cakes",
"item": [
{
"DisplayName": "Excellent 500gms",
"ItemData": {
"ItemName": "Excellent"
}
},
{
"DisplayName": "choco vanila 500gms",
"ItemData": {
"Id": "26",
"ItemName": "choco vanila "
}
}
]
},
{
"SubCatId": "2",
"SubCategoryName": "Classic Cakes2",
"item": [
{
"DisplayName": "xyz 500gms",
"ItemData": {
"ItemName": "xyz"
}
},
{
"DisplayName": "abc 500gms",
"ItemData": {
"Id": "26",
"ItemName": "abc vanila "
}
}
]
}
]
},
{
"categoryId": "2",
"categoryName": "Markers",
"subcat": [
{
"SubCatId": "2",
"SubCategoryName": "Premium Cakes I",
"item": [
{
"DisplayName": "choco caramel 500gms",
"ItemData": {
"Id": "65",
"ItemName": "choco caramel"
}
},
{
"DisplayName": "choco almond 500gms",
"ItemData": {
"Id": "52",
"ItemName": "choco almond "
}
}
]
}
]
}
]
}
我想對 'categoryName' 、 'SubCategoryName' 、 'DisplayName' 、 'ItemName' 應用過濾器
例如,如果我搜索“巧克力杏仁”(即“ItemName”),那么結果數組應該類似於
{
"data": [
{
"categoryId": "2",
"categoryName": "Markers",
"subcat": [
{
"SubCatId": "2",
"SubCategoryName": "Premium Cakes I",
"item": [
{
"DisplayName": "choco almond 500gms",
"ItemData": {
"Id": "52",
"ItemName": "choco almond "
}
}
]
}
]
}
]
}
如果我搜索“Pens”(即“categoryName”),那么結果數組應該是這樣的
{
"data": [
{
"categoryId": "1",
"categoryName": "Pens",
"subcat": [
{
"SubCatId": "1",
"SubCategoryName": "Classic Cakes",
"item": [
{
"DisplayName": "Excellent 500gms",
"ItemData": {
"ItemName": "Excellent"
}
},
{
"DisplayName": "choco vanila 500gms",
"ItemData": {
"Id": "26",
"ItemName": "choco vanila "
}
}
]
},
{
"SubCatId": "2",
"SubCategoryName": "Classic Cakes2",
"item": [
{
"DisplayName": "xyz 500gms",
"ItemData": {
"ItemName": "xyz"
}
},
{
"DisplayName": "abc 500gms",
"ItemData": {
"Id": "26",
"ItemName": "choco vanila "
}
}
]
}
]
}
]
}
你可以做的是在過濾器內做一個過濾器。
var filter = "Pens";
var result = d["data"].filter(c=>
c.categoryName==filter ||
c.subcat.filter(s => s.SubCategoryName == filter).length > 0 ||
c.subcat.filter(i => i.item.filter(it => it.ItemData.ItemName == filter).length > 0).length > 0
);
console.log(result)
其中變量“d”是 json/object。
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