Javascript JS-过滤对象的嵌套数组

示例JSON数据：

const data = [{
    "_id": "5cc5df25a193c21608666b00",
    "departmentName": "Software Dev",
    "managerId": "5cc5df25a193c21608666b01",
    "managerEmail": "swdmanager@company.com",
    "teams": [{
        "teamName": "SWD Team 1",
        "teamLeadId": "5cc5df25a193c21608666b02",
        "teamLeadEmail": "swdteam1lead@company.com",
        "teamMembers": [{
          "memberId": "5cc5df25a193c21608666b03",
          "memberEmail": "JonDoe1@company.com"
        }]
      },
      {
        "teamName": "SWD Team 2",
        "teamLeadId": "5cc5df25a193c21608666b04",
        "teamLeadEmail": "swdteam2lead@company.com",
        "teamMembers": [{
            "memberId": "5cc5df25a193c21608666b05",
            "memberEmail": "JonDoe2@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b06",
            "memberEmail": "JonDoe3@company.com"
          }
        ]
      }
    ]
  },
  {
    "_id": "5cc5df25a193c21608666b07",
    "departmentName": "Software QA",
    "managerId": "5cc5df25a193c21608666b08",
    "managerEmail": "qamanager@company.com",
    "teams": [{
        "teamName": "QA Team 1",
        "teamLeadId": "5cc5df25a193c21608666b09",
        "teamLeadEmail": "qateam1lead@company.com",
        "teamMembers": [{
          "memberId": "5cc5df25a193c21608666b10",
          "memberEmail": "JonDoe4@company.com"
        }]
      },
      {
        "teamName": "QA Team 2",
        "teamLeadId": "5cc5df25a193c21608666b11",
        "teamLeadEmail": "qateam2lead@company.com",
        "teamMembers": []
      },
      {
        "teamName": "QA Team 3",
        "teamLeadId": "5cc5df25a193c21608666b12",
        "teamLeadEmail": "qateam3lead@company.com",
        "teamMembers": [{
            "memberId": "5cc5df25a193c21608666b13",
            "memberEmail": "JonDoe4@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b14",
            "memberEmail": "JonDoe5@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b15",
            "memberEmail": "JonDoe6@company.com"
          }
        ]
      }
    ]
  },
  {
    "_id": "5cc5df25a193c21608666b16",
    "departmentName": "Software Creative",
    "managerId": "5cc5df25a193c21608666b17",
    "managerEmail": "swcmanager@company.com",
    "teams": []
  },
  {
    "_id": "5cc5df25a193c21608666b18",
    "departmentName": "Software BA",
    "managerId": "5cc5df25a193c21608666b19",
    "managerEmail": "swbamanager@company.com",
    "teams": [{
      "teamName": "BA Team 1",
      "teamLeadId": "5cc5df25a193c21608666b20",
      "teamLeadEmail": "bateam3lead@company.com",
      "teamMembers": []
    }]
  }
];

[
  {
    "_id": "5cc5df25a193c21608666b00",
    "departmentName": "Software Dev",
    "managerId": "5cc5df25a193c21608666b01",
    "managerEmail": "swdmanager@company.com",
    "teams": [
      {
        "teamName": "SWD Team 1",
        "teamLeadId": "5cc5df25a193c21608666b02",
        "teamLeadEmail": "swdteam1lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b03",
            "memberEmail": "JonDoe1@company.com"
          }
        ]
      },
      {
        "teamName": "SWD Team 2",
        "teamLeadId": "5cc5df25a193c21608666b04",
        "teamLeadEmail": "swdteam2lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b05",
            "memberEmail": "JonDoe2@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b06",
            "memberEmail": "JonDoe3@company.com"
          }
        ]
      }
    ]
  },
  {
    "_id": "5cc5df25a193c21608666b07",
    "departmentName": "Software QA",
    "managerId": "5cc5df25a193c21608666b08",
    "managerEmail": "qamanager@company.com",
    "teams": [
      {
        "teamName": "QA Team 1",
        "teamLeadId": "5cc5df25a193c21608666b09",
        "teamLeadEmail": "qateam1lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b10",
            "memberEmail": "JonDoe4@company.com"
          }
        ]
      },
      {
        "teamName": "QA Team 3",
        "teamLeadId": "5cc5df25a193c21608666b12",
        "teamLeadEmail": "qateam3lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b13",
            "memberEmail": "JonDoe4@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b14",
            "memberEmail": "JonDoe5@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b15",
            "memberEmail": "JonDoe6@company.com"
          }
        ]
      }
    ]
  }
]

Desc:有三个级别。顶部=部门，中间=团队，底部=团队成员。一个部门可以有0个或多个团队。一个团队可以有0个或多个团队成员

目标：我尝试只返回teamMembers数组中至少填充了一个值的数据

因此，应该在输出中消除的是1）软件QA/QA团队2-只有QA团队2，因为其他QA团队有团队成员2）软件创意-整个对象，因为它甚至没有团队，更不用说团队成员了，3）软件BA-只有一个团队，但没有团队成员。这三个对象在teamMembers数组中没有填充单个值

我觉得我需要使用嵌套对象（#JSnewbie），但不确定如何使用它。另外，我现在正在学习JS，所以一些关于实现这一点的最新方法的建议将非常棒

所需输出：

const data = [{
    "_id": "5cc5df25a193c21608666b00",
    "departmentName": "Software Dev",
    "managerId": "5cc5df25a193c21608666b01",
    "managerEmail": "swdmanager@company.com",
    "teams": [{
        "teamName": "SWD Team 1",
        "teamLeadId": "5cc5df25a193c21608666b02",
        "teamLeadEmail": "swdteam1lead@company.com",
        "teamMembers": [{
          "memberId": "5cc5df25a193c21608666b03",
          "memberEmail": "JonDoe1@company.com"
        }]
      },
      {
        "teamName": "SWD Team 2",
        "teamLeadId": "5cc5df25a193c21608666b04",
        "teamLeadEmail": "swdteam2lead@company.com",
        "teamMembers": [{
            "memberId": "5cc5df25a193c21608666b05",
            "memberEmail": "JonDoe2@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b06",
            "memberEmail": "JonDoe3@company.com"
          }
        ]
      }
    ]
  },
  {
    "_id": "5cc5df25a193c21608666b07",
    "departmentName": "Software QA",
    "managerId": "5cc5df25a193c21608666b08",
    "managerEmail": "qamanager@company.com",
    "teams": [{
        "teamName": "QA Team 1",
        "teamLeadId": "5cc5df25a193c21608666b09",
        "teamLeadEmail": "qateam1lead@company.com",
        "teamMembers": [{
          "memberId": "5cc5df25a193c21608666b10",
          "memberEmail": "JonDoe4@company.com"
        }]
      },
      {
        "teamName": "QA Team 2",
        "teamLeadId": "5cc5df25a193c21608666b11",
        "teamLeadEmail": "qateam2lead@company.com",
        "teamMembers": []
      },
      {
        "teamName": "QA Team 3",
        "teamLeadId": "5cc5df25a193c21608666b12",
        "teamLeadEmail": "qateam3lead@company.com",
        "teamMembers": [{
            "memberId": "5cc5df25a193c21608666b13",
            "memberEmail": "JonDoe4@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b14",
            "memberEmail": "JonDoe5@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b15",
            "memberEmail": "JonDoe6@company.com"
          }
        ]
      }
    ]
  },
  {
    "_id": "5cc5df25a193c21608666b16",
    "departmentName": "Software Creative",
    "managerId": "5cc5df25a193c21608666b17",
    "managerEmail": "swcmanager@company.com",
    "teams": []
  },
  {
    "_id": "5cc5df25a193c21608666b18",
    "departmentName": "Software BA",
    "managerId": "5cc5df25a193c21608666b19",
    "managerEmail": "swbamanager@company.com",
    "teams": [{
      "teamName": "BA Team 1",
      "teamLeadId": "5cc5df25a193c21608666b20",
      "teamLeadEmail": "bateam3lead@company.com",
      "teamMembers": []
    }]
  }
];

[
  {
    "_id": "5cc5df25a193c21608666b00",
    "departmentName": "Software Dev",
    "managerId": "5cc5df25a193c21608666b01",
    "managerEmail": "swdmanager@company.com",
    "teams": [
      {
        "teamName": "SWD Team 1",
        "teamLeadId": "5cc5df25a193c21608666b02",
        "teamLeadEmail": "swdteam1lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b03",
            "memberEmail": "JonDoe1@company.com"
          }
        ]
      },
      {
        "teamName": "SWD Team 2",
        "teamLeadId": "5cc5df25a193c21608666b04",
        "teamLeadEmail": "swdteam2lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b05",
            "memberEmail": "JonDoe2@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b06",
            "memberEmail": "JonDoe3@company.com"
          }
        ]
      }
    ]
  },
  {
    "_id": "5cc5df25a193c21608666b07",
    "departmentName": "Software QA",
    "managerId": "5cc5df25a193c21608666b08",
    "managerEmail": "qamanager@company.com",
    "teams": [
      {
        "teamName": "QA Team 1",
        "teamLeadId": "5cc5df25a193c21608666b09",
        "teamLeadEmail": "qateam1lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b10",
            "memberEmail": "JonDoe4@company.com"
          }
        ]
      },
      {
        "teamName": "QA Team 3",
        "teamLeadId": "5cc5df25a193c21608666b12",
        "teamLeadEmail": "qateam3lead@company.com",
        "teamMembers": [
          {
            "memberId": "5cc5df25a193c21608666b13",
            "memberEmail": "JonDoe4@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b14",
            "memberEmail": "JonDoe5@company.com"
          },
          {
            "memberId": "5cc5df25a193c21608666b15",
            "memberEmail": "JonDoe6@company.com"
          }
        ]
      }
    ]
  }
]

---

您可以筛选没有团队的团队，然后将其映射到筛选空团队的新阵列

首先，您必须筛选那些根本没有团队成员的团队。但是你会被留下没有团队成员的团队。因此，您必须使用.map来仅添加具有团队成员的团队

const filterEmptyTeams=（数据）=>data.filter（（部门）=>{
const teams=department.teams.filter（（team）=>team.teamMembers.length>0）
返回团队。长度！==0
}).map（（部门）=>{
const teams=department.teams.filter（（team）=>team.teamMembers.length>0）
返回{…部门，团队}
})
常数数据=[{
“_id”：“5cc5df25a193c21608666b00”，
“部门名称”：“软件开发人员”，
“managerId”：“5cc5df25a193c21608666b01”，
“managerEmail”：swdmanager@company.com",
“团队”：[{
"队伍名称:"社署第一队,，
“团队领导ID”：“5cc5df25a193c21608666b02”，
“teamLeadEmail”：swdteam1lead@company.com",
“团队成员”：[{
“成员ID”：“5cc5df25a193c21608666b03”，
“成员电子邮件”：JonDoe1@company.com"
}]
},
{
“团队名称”：“社会福利署第二团队”，
“团队领导ID”：“5cc5df25a193c21608666b04”，
“teamLeadEmail”：swdteam2lead@company.com",
“团队成员”：[{
“成员ID”：“5cc5df25a193c21608666b05”，
“成员电子邮件”：JonDoe2@company.com"
},
{
“成员ID”：“5cc5df25a193c21608666b06”，
“成员电子邮件”：JonDoe3@company.com"
}
]
}
]
},
{
“_id”：“5cc5df25a193c21608666b07”，
“部门名称”：“软件QA”，
“managerId”：“5cc5df25a193c21608666b08”，
“managerEmail”：qamanager@company.com",
“团队”：[{
“团队名称”：“QA团队1”，
“团队领导ID”：“5cc5df25a193c21608666b09”，
“teamLeadEmail”：qateam1lead@company.com",
“团队成员”：[{
“成员ID”：“5cc5df25a193c21608666b10”，
“成员电子邮件”：JonDoe4@company.com"
}]
},
{
“团队名称”：“QA团队2”，
“团队领导ID”：“5cc5df25a193c21608666b11”，
“teamLeadEmail”：qateam2lead@company.com",
“团队成员”：[]
},
{
“团队名称”：“QA团队3”，
“团队领导ID”：“5cc5df25a193c21608666b12”，
“teamLeadEmail”：qateam3lead@company.com",
“团队成员”：[{
“成员ID”：“5cc5df25a193c21608666b13”，
“成员电子邮件”：JonDoe4@company.com"
},
{
“成员ID”：“5cc5df25a193c21608666b14”，
“成员电子邮件”：JonDoe5@company.com"
},
{
“成员ID”：“5cc5df25a193c21608666b15”，
“成员电子邮件”：JonDoe6@company.com"
}
]
}
]
},
{
“_id”：“5cc5df25a193c21608666b16”，
“部门名称”：“软件创意”，
“managerId”：“5cc5df25a193c21608666b17”，
“managerEmail”：swcmanager@company.com",
“团队”：[]
},
{
“_id”：“5cc5df25a193c21608666b18”，
“部门名称”：“软件BA”，
“managerId”：“5cc5df25a193c21608666b19”，
“managerEmail”：swbamanager@company.com",
“团队”：[{
“团队名称”：“BA团队1”，
“teamLeadId”：“5cc5df25a193c21608666b20”，
“teamLeadEmail”：bateam3lead@company.com",
“团队成员”：[]
}]
}
];
log（filterEmptyTeams（data））

您可以减少数组，并使用递归方法检查并返回嵌套属性的数组

函数

filter

获取数据数组和嵌套属性的键数组。如果所需密钥的数组中有一些项，则返回一个包含项的数组

如果有更多的键可用，将移交并检查带有数组的实际属性。如果结果不是空数组，则获取实际对象的副本以及过滤结果，并将此对象推送到结果集

如果没有更多可用的关键点，则结果集将采用未更改的对象

函数过滤器（数组，[键，…键]）{
返回数组.reduce（（r，o）=>{
if（o[key]&&o[key].length）{
if（键长度）{
var temp=过滤器（o[键]，键）；
if（temp.length）r.push（Object.assign（{}，o，{[key]：temp}））；
}否则{
r、 推（o）；
}
}
返回r；
}, []);
}
var data=[{u id:“5cc5df25a193c21608666b00”，部门名称：“软件开发”，经理id:“5cc5df25a193c21608666b01”，经理邮件：swdmanager@company.com，团队：[{团队名称：“社会福利署团队1”，团队领导ID:“5cc5df25a193c21608666b02”，团队领导电子邮件：swdteam1lead@company.com，团队成员：[{成员ID:“5cc5df25a193c21608666b03”，成员电子邮件："JonDoe1@company.com“}]}，{teamName:“社会福利署第二队”，teamLeadId:“5cc5df25a193c21608666b04”，teamLeadEmail:swdteam2lead@company.com，团队成员：[{memberId:“5cc5df25a193c21608666b05”，membe