如何从对象内部删除项

Question

我有一个数组像

 let = cartItem =
   {
    "_id": "6075a0ddf88a6035001376d0",
    "buyerId": "603e808bab11752d38c463cb",
    "buyerEmail": "[e-mail]",
    "buyerName": "Muhammad  Hassaan Ather",
    "products": [
          {
              "_id": "6075a9afb5335c2e94b29c1b",
              "productId": "606ddc2a4b7adbd74c703746",
              "quantity": 4,
              "productTitle": "New",
              "productSelectedFile": "URL",
              "productPrice": 10000
          },
          {
              "_id": "6075abf8b5335c2e94b29c1c",
              "productId": "605df90844bf6e0264544b77",
              "quantity": 1,
              "productTitle": "Wooden",
              "productSelectedFile":             
              "anyUrl",
              "productPrice": 100000
          }
        ],

      }

现在我要移除cartItem对象中的一个产品。我试过这个方法，但是更新后它也把原来的cartitem弄得一塌糊涂。

  let newCart = cartItems.products.filter((item) => item.productId !== id);

最后，原始的cartItem对象也没有显示任何东西。

我想要的是从products数组中移除一个产品，并发送回剩余的数组。

Answer 1

null

let = cartItem =
   {
    "_id": "6075a0ddf88a6035001376d0",
    "buyerId": "603e808bab11752d38c463cb",
    "buyerEmail": "[e-mail]",
    "buyerName": "Muhammad  Hassaan Ather",
    "products": [
          {
              "_id": "6075a9afb5335c2e94b29c1b",
              "productId": "606ddc2a4b7adbd74c703746",
              "quantity": 4,
              "productTitle": "New",
              "productSelectedFile": "URL",
              "productPrice": 10000
          },
          {
              "_id": "6075abf8b5335c2e94b29c1c",
              "productId": "605df90844bf6e0264544b77",
              "quantity": 1,
              "productTitle": "Wooden",
              "productSelectedFile":             
              "anyUrl",
              "productPrice": 100000
          }
        ]
}
      
//delete 6075abf8b5335c2e94b29c1c

for (var i = 0; i < cartItem["products"].length; i++) {
  if (cartItem["products"][i]["_id"] == "6075abf8b5335c2e94b29c1c") {
    cartItem["products"].splice(i, 1);
    break;
  }
}

console.log(cartItem);