使用 javascript 根据状态和商店计算对象？

Question

我有以下 JSON 数组我想在每个对象中创建一个新字段，这将是对象的计数

我们必须根据状态、商店和名称（所有者详细信息）进行计数

我怎样才能做到这一点，我在下面添加了我的预期输出

 var items = [
  {
    "id": 1,    
    "status": "ORANGE",
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}]    
    
  },
  {
    "id": 2,
    "status": "GREEN",
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}]
  },
  {
    "id": 3,
    "status": "ORANGE",
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}]    
  },
  {
    "id": 4,
    "status": "YELLOW",
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}]
  },
  {
    "id": 5,
    "status": "RED",
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}]
  },
  {
    "id":6,
    "status": "GREEN",
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}]
  },
  {
    "id": 7,
    "status": "GREEN",
    "Shop":"XYZ",
    "ownerDetails":[ {"name":"test2","address":"test2"}]
  },
   {
    "id": 8,
    "status": "ORANGE",
    "Shop":"XYZ",
    "ownerDetails":[ {"name":"test2","address":"test2"}]    
  },
  {
    "id": 9,
    "status": "YELLOW",
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}]
  },
  {
    "id": 10,
    "status": "GREEN",
    "Shop":"EFG",
    "ownerDetails":[ {"name":"test3","address":"test3"}]
  }
]

预期输出：所以根据每个商店、状态和名称（所有者详细信息）我们必须计算对象

    [
  {
    "id": 1,    
    "status": "ORANGE"
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}],
    "Count": 2
  },
  {
    "id": 2,
    "status": "GREEN"
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}],
    "Count": 2
  },
  {
    "id": 3,
    "status": "ORANGE"
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}],
    "Count": 2
  },
  {
    "id": 4,
    "status": "YELLOW"
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}],
    "Count": 2
  },
  {
    "id": 5,
    "status": "RED"
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}],
    "Count": 1
  },
  {
    "id":6,
    "status": "GREEN"
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}],
    "Count": 2
  },
  {
    "id": 7,
    "status": "GREEN"
    "Shop":"XYZ",
    "ownerDetails":[ {"name":"test2","address":"test2"}],
    "Count": 1
  },
   {
    "id": 8,
    "status": "ORANGE"
    "Shop":"XYZ",
    "ownerDetails":[ {"name":"test2","address":"test2"}],
    "Count": 1
  },
  {
    "id": 9,
    "status": "YELLOW"
    "Shop":"ABC",
    "ownerDetails":[ {"name":"test1","address":"test1"}],
    "Count": 2
  },
  {
    "id": 10,
    "status": "GREEN"
    "Shop":"EFG"
    "ownerDetails":[ {"name":"test3","address":"test3"}],
    "Count": 1
  }
]

有人可以帮我解决这个问题吗？

请看demo

感谢@Nico_ 的帮助

Answer 1

您可以使用 map 循环遍历您的数组（顺便说一句，您需要在“商店”之前添加一些昏迷。

const items = [[
  {
    "id": 1,    
    "status": "ORANGE",
    "Shop":"ABC"
  },
  {
    "id": 2,
    "status": "GREEN",
    "Shop":"ABC"
  },
]

const itemsWithCount = items.map(item => ({
  ...item,
  Count: items.filter(({ status, Shop }) => item.status === status && item.Shop === Shop).length
}));

对于数组中的每个项目，您保留该项目的当前值（...item）并添加一个 Count 属性，这将得到该项目的计数通过过滤数组以仅保留具有相同状态和商店的项目来获得该数组的长度。

Answer 2

var items = [{
    "id": 1,
    "status": "ORANGE",
    "Shop": "ABC",
    "ownerDetails": [{
      "name": "test1",
      "address": "test1"
    }]

  },
  {
    "id": 2,
    "status": "GREEN",
    "Shop": "ABC",
    "ownerDetails": [{
      "name": "test1",
      "address": "test1"
    }]
  },
  {
    "id": 3,
    "status": "ORANGE",
    "Shop": "ABC",
    "ownerDetails": [{
      "name": "test1",
      "address": "test1"
    }]
  },
  {
    "id": 4,
    "status": "YELLOW",
    "Shop": "ABC",
    "ownerDetails": [{
      "name": "test1",
      "address": "test1"
    }]
  },
  {
    "id": 5,
    "status": "RED",
    "Shop": "ABC",
    "ownerDetails": [{
      "name": "test1",
      "address": "test1"
    }]
  },
  {
    "id": 6,
    "status": "GREEN",
    "Shop": "ABC",
    "ownerDetails": [{
      "name": "test1",
      "address": "test1"
    }]
  },
  {
    "id": 7,
    "status": "GREEN",
    "Shop": "XYZ",
    "ownerDetails": [{
      "name": "test2",
      "address": "test2"
    }]
  },
  {
    "id": 8,
    "status": "ORANGE",
    "Shop": "XYZ",
    "ownerDetails": [{
      "name": "test2",
      "address": "test2"
    }]
  },
  {
    "id": 9,
    "status": "YELLOW",
    "Shop": "ABC",
    "ownerDetails": [{
      "name": "test1",
      "address": "test1"
    }]
  },
  {
    "id": 10,
    "status": "GREEN",
    "Shop": "EFG",
    "ownerDetails": [{
      "name": "test3",
      "address": "test3"
    }]
  }
];

var mapData = items.map((data) => {
  var getList = items.filter(word => word.Shop == data.Shop).length;
  return {
    id: data.id,
    status: data.status,
    Shop: data.Shop,
    text: data.ownerDetails,
    Count: getList
  };
});

console.log(mapData);

注意：- 地图数据和统计的类似商店....

使用 javascript 根据状态和商店计算对象？

count object based on status and shop using javascript?

javascript

arrays

json

angularjs