javascript - 使用 Jquery 比较 JSON 对象数组

Question

我有一个像这样的选定列表对象{"0":"1","2":"1"}, 我想将它与另一个数组进行比较，如下所示

{
  "0": {
    "id": 1,
    "salutation": "Dr.",
    "firstname": "Kapil",
    "lastname": "Dev",
    "gender": "Male ",
    "email": "kapil.dev@aggenome.com",
    "phone": 1232423415,
    "usertype": "student",
    "institution": "AgriGenome Labs Pvt Ltd",
    "department": "Lab",
    "country": "India",
    "conferenceitem": "2017 NGBT Conference ",
    "conferenceitemid": "39",
    "amount": 2800,
    "actual_amount": "5000.00",
    "currency": "INR",
    "group": "Lead",
    "accompany": "No",
    "password": null,
    "mailsend": "Yes"
  },
  "1": {
    "id": 2,
    "salutation": "Mr.",
    "firstname": "Sunil",
    "lastname": "Gavaskar",
    "gender": "Male ",
    "email": "sunil.gavaskar@aggenome.com",
    "phone": 1232423415,
    "usertype": "commercial",
    "institution": "AgriGenome Labs Pvt Ltd",
    "department": "Bio Info",
    "country": "India",
    "conferenceitem": "2017 NGBT Conference ",
    "conferenceitemid": "31",
    "amount": "3100.00",
    "actual_amount": "10000.00",
    "currency": "INR",
    "group": "Yes",
    "accompany": "No",
    "password": null,
    "mailsend": "Yes"
  },
  "2": {
    "id": 3,
    "salutation": "Mr.",
    "firstname": "Anil",
    "lastname": "Kumble",
    "gender": "Male ",
    "email": "anil.kumble@aggenome.com",
    "phone": 1232423415,
    "usertype": "student",
    "institution": "AgriGenome Labs Pvt Ltd",
    "department": "Support",
    "country": "India",
    "conferenceitem": "Accompanying Person",
    "conferenceitemid": "5",
    "amount": 1900,
    "actual_amount": "5000.00",
    "currency": "INR",
    "group": "No",
    "accompany": "Yes",
    "password": null,
    "mailsend": "No"
  }
}

基于键，意味着仅选择 0 和 2，我需要从具有键 0 和 2 的第二个对象中获取数据(不包括 1 )，我该怎么做？我是这个领域的新手...

Answer 1

var obj = {"0":"1","2":"1"};
var newobj = {
  "0": {
    "id": 1,
    "salutation": "Dr.",
    "firstname": "Kapil",
    "lastname": "Dev",
    "gender": "Male ",
    "email": "kapil.dev@aggenome.com",
    "phone": 1232423415,
    "usertype": "student",
    "institution": "AgriGenome Labs Pvt Ltd",
    "department": "Lab",
    "country": "India",
    "conferenceitem": "2017 NGBT Conference ",
    "conferenceitemid": "39",
    "amount": 2800,
    "actual_amount": "5000.00",
    "currency": "INR",
    "group": "Lead",
    "accompany": "No",
    "password": null,
    "mailsend": "Yes"
  },
  "1": {
    "id": 2,
    "salutation": "Mr.",
    "firstname": "Sunil",
    "lastname": "Gavaskar",
    "gender": "Male ",
    "email": "sunil.gavaskar@aggenome.com",
    "phone": 1232423415,
    "usertype": "commercial",
    "institution": "AgriGenome Labs Pvt Ltd",
    "department": "Bio Info",
    "country": "India",
    "conferenceitem": "2017 NGBT Conference ",
    "conferenceitemid": "31",
    "amount": "3100.00",
    "actual_amount": "10000.00",
    "currency": "INR",
    "group": "Yes",
    "accompany": "No",
    "password": null,
    "mailsend": "Yes"
  },
  "2": {
    "id": 3,
    "salutation": "Mr.",
    "firstname": "Anil",
    "lastname": "Kumble",
    "gender": "Male ",
    "email": "anil.kumble@aggenome.com",
    "phone": 1232423415,
    "usertype": "student",
    "institution": "AgriGenome Labs Pvt Ltd",
    "department": "Support",
    "country": "India",
    "conferenceitem": "Accompanying Person",
    "conferenceitemid": "5",
    "amount": 1900,
    "actual_amount": "5000.00",
    "currency": "INR",
    "group": "No",
    "accompany": "Yes",
    "password": null,
    "mailsend": "No"
  }
}

var newArray = Object.keys(obj).map(item => {
return newobj[item]})
console.log(newArray)