我正在制作一个送餐应用程序,我有两个不同的对象数组。其中一个是cartItems
,另一个是foodItems
。数组可以是不同的大小。那么我想遍历每个数组并检查什么
如果两个数组的 id 匹配。
Note
我想检查数量是否存在,然后按新数量增加它,否则只需添加一个新数量
检查foodItems
数组中是否存在itemDetails,如果存在,检查cartItems的price
是否与那个foodItem匹配,然后更新cartItems
对象,否则删除它们.
如果 itemDetails 不存在,则更新项目的数量。
更新 如果有两个id和价格相近的商品,需要添加数量
这是我的cartItems:
let cartItems = [
{ id: 1, price: 120, quantity: 7 },
{ id: 2, price: 70, quantity: 4 },
{ id: 1, price: 70, quantity: 3 },
{ id: 3, price: 60, quantity: 1 },
{id: 1, price: 120, quantity: 2}
];
这是我的foodItems
let foodItems = [
{
id: 1,
name: "chicken",
itemDetails: [
{
price: 120,
details: "2 pcs of chicken biryani"
},
{
price: 70,
details: "1 pcs of chicken biryani"
}
],
},
{
id: 2,
name: "Mutton",
itemDetails: [
{
price: 120,
details: "Two pieces of mutton biryani",
},
{
price: 70,
details: "one pcs of mutton biryani"
},
],
},
{ id: 3, name: "Ice Cream", price: 60 },
];
这是我想要的输出
let filteredArrayOuput = [
{
id: 1,
name: "Chicken Biryani",
itemDetails: [
{
price: 120,
details: "Two pieces of chicken Biryani",
},
],
quantity: 7,
},
{
id: 2,
name: "Mutton Biryani",
itemDetails: [
{
price: 70,
details: "Two pieces of mutton biryani",
},
],
quantity: 4,
},
{
id: 1,
price: "Chicken Biryani",
quantity: 3,
itemDetails: [
{
price: 70,
details: "Two pieces of Chicken Biryani",
},
],
},
{ id: 3, price: 60, quantity: 1 },
];
这就是我迄今为止所做的
const filterFunc = (arr, price) => {
let filtered = arr.filter((item) => {
return item.price == price;
});
return filtered;
};
const filterArray = (arr1, arr2) => {
const filtered = arr2.filter((el) => {
let arr = arr1.find(({ id, quantity, price }) => {
if (el.id === id) {
if (el.itemDetails !== undefined && el.itemDetails.length !== 0) {
let itemDetails = el.itemDetails;
return (
(el.quantity = quantity),
(el.itemDetails = filterFunc(itemDetails, price))
);
} else {
return (el.quantity = quantity);
}
}
});
return arr;
});
return filtered;
};
console.log(filterArray(cartItems, foodItems))
答案 0 :(得分:1)
您可以查看以下代码。
existingFoodItem
priceObj
?
检查),否则如果不存在 itemDetails 则不返回价格。let cartItems = [
{ id: 1, price: 120, quantity: 7 },
{ id: 1, price: 120, quantity: 1 },
{ id: 2, price: 70, quantity: 4 },
{ id: 1, price: 70, quantity: 3 },
{ id: 3, price: 60, quantity: 1 },
];
let foodItems = [
{
id: 1,
name: "chicken",
itemDetails: [
{
price: 120,
details: "2 pcs of chicken biryani"
},
{
price: 70,
details: "1 pcs of chicken biryani"
}
],
},
{
id: 2,
name: "Mutton",
itemDetails: [
{
price: 120,
details: "Two pieces of mutton biryani",
},
{
price: 70,
details: "one pcs of mutton biryani"
},
],
},
{ id: 3, name: "Ice Cream", price: 60 },
];
let result = [];
cartItems.forEach(cart => {
let esitingItem = result.find(r => r.id === cart.id && r.itemDetails.find(i => i.price === cart.price));
if(esitingItem){
esitingItem.quantity += cart.quantity;
return;
}
let existingFoodItem = foodItems.find(food => food.id === cart.id);
if(existingFoodItem){
let priceObj = existingFoodItem.itemDetails?.find(item => item.price === cart.price);
if(priceObj){
result.push({id:cart.id,name:existingFoodItem.name,itemDetails:[{...priceObj}],quantity:cart.quantity});
}
else{
return result.push({id:cart.id,name:existingFoodItem.name,quantity:cart.quantity});
}
}
});
console.log(result);