javascript Javascript - 仅返回对象数组中的唯一值

Posted 2021-05-03

const data =           [
        {
          "objectId": "WMtwbyhFI6",
          "cuisineNameEn": "Cafe",
          "ordersNo": 20,
          "hidden": false
        },
        {
          "objectId": "QJSNTMpq5F",
          "ordersNo": 24,
          "cuisineNameEn": "Italian",
          "hidden": false
        },
        {
          "objectId": "iLXKswFRGa",
          "ordersNo": 5,
          "cuisineNameEn": "Japanese",
          "hidden": true
        },
        {
          "objectId": "Db0MeihpJE",
          "ordersNo": 6,
          "cuisineNameEn": "Fast Food",
          "hidden": false
        },
        {
          "objectId": "QJSNTMpq5F",
          "ordersNo": 24,
          "cuisineNameEn": "Italian",
          "hidden": false
        },
        {
          "objectId": "Db0MeihpJE",
          "ordersNo": 6,
          "cuisineNameEn": "Fast Food",
          "hidden": false
        },
        {
          "objectId": "Db0MeihpJE",
          "ordersNo": 6,
          "cuisineNameEn": "Fast Food",
          "hidden": false,
        },
        {
          "objectId": "Db0MeihpJE",
          "ordersNo": 6,
          "cuisineNameEn": "Fast Food",
          "hidden": false
        },
         {
          "objectId": "Db0MeihpJE",
          "ordersNo": 6,
          "cuisineNameEn": "Fast Food",
          "hidden": false
        },
         {
          "objectId": "Db0MeihpJE",
          "ordersNo": 6,
          "cuisineNameEn": "Fast Food",
          "hidden": false
        },
        {
          "objectId": "Db0MeihpJE",
          "ordersNo": 6,
          "cuisineNameEn": "Fast Food",
          "hidden": false
        }
      ];
 
 console.log(data.reduce((acc, x) =>
   acc.concat(acc.find(y => y.ordersNo === x.ordersNo) ? [] : [x])
 , []));