How can I check if the array of objects have same values

Question

Here my array contains same address id but different phoneType and phonenumber. I need some help with iterating through array,i want to get phoneType and phonenumber when adressid is same. I keep getting stuck when comparing object values in array.

var userdetail = [
    { name: "Steve",   adressID: "1", phoneType:"main",  phonenumber:"12222228"},
    { name: "Steve",   adressID: "1", phoneType:"fax" ,  phonenumber:"55555668"},
    { name: "Peter",   adressID: "2", phoneType:"main",  phonenumber:"67544442"},
    { name: "Elaine",  adressID: "3", phoneType:"main",  phonenumber:"87877778"},
    { name: "Elaine",  adressID: "3", phoneType:"mobile",phonenumber:"23234678"},
    { name: "Steve",   adressID: "1", phoneType:"work",  phonenumber:"42222228"},
];

my expected out should be

     {
  "name": "Steve",
  "adressID": "1",
  "phoneType": "main",
  "phonenumber": "12222228"
},
{
  "name": "Steve",
  "adressID": "1",
  "phoneType": "fax",
  "phonenumber": "55555668"
},
{
  "name": "Steve",
  "adressID": "1",
  "phoneType": "work",
  "phonenumber": "42222228"
}

@brk i have updated my question and @ palaѕн i ll update my fiddle wht i tried — user3558981, Dec 30 '17 at 05:45
The expected output is wrong.Inside array there cannot be key and value like data unless you use an object — brk, Dec 30 '17 at 05:47
This question is similar to ```The train runs at 60 miles per hour and what is the age of your father``` — Ankit Agarwal, Dec 30 '17 at 05:49
@ Ankit Agarwal you mean to same their is no connection between my question and output — user3558981, Dec 30 '17 at 05:53

brk · Accepted Answer · 2017-12-30T05:58:18.057

Create an object where the addressID will be the key and the value of this key will be an array of objects which have this same key as the addressID

var userdetail = [{
    name: "Steve",
    adressID: "1",
    phoneType: "main",
    phonenumber: "12222228"
  },
  {
    name: "Steve",
    adressID: "1",
    phoneType: "fax",
    phonenumber: "55555668"
  },
  {
    name: "Peter",
    adressID: "2",
    phoneType: "main",
    phonenumber: "67544442"
  },
  {
    name: "Elaine",
    adressID: "3",
    phoneType: "main",
    phonenumber: "87877778"
  },
  {
    name: "Elaine",
    adressID: "3",
    phoneType: "mobile",
    phonenumber: "23234678"
  },
  {
    name: "Steve",
    adressID: "1",
    phoneType: "work",
    phonenumber: "42222228"
  },
];
var result = userdetail.reduce(function(res, o) {
  res[o.adressID] || (res[o.adressID] = []); // if the adressID key doesn't exist, set it to be an array

  res[o.adressID].push(o); // push the object into the array

  return res;
}, {});
console.log(result)

score 0 · Answer 2 · answered Dec 30 '17 at 05:32

Here is one way of doing it, first groupby the array, function is taken from the SO answer, refer here, then access whatever name you want, refer the below snippet!

var userdetail = [{
    name: "Steve",
    adressID: "1",
    phoneType: "main",
    phonenumber: "12222228"
  },
  {
    name: "Steve",
    adressID: "1",
    phoneType: "fax",
    phonenumber: "55555668"
  },
  {
    name: "Peter",
    adressID: "2",
    phoneType: "main",
    phonenumber: "67544442"
  },
  {
    name: "Elaine",
    adressID: "3",
    phoneType: "main",
    phonenumber: "87877778"
  },
  {
    name: "Elaine",
    adressID: "3",
    phoneType: "mobile",
    phonenumber: "23234678"
  },
  {
    name: "Steve",
    adressID: "1",
    phoneType: "work",
    phonenumber: "42222228"
  },
];

var groupBy = function(xs, key) {
  return xs.reduce(function(rv, x) {
    (rv[x[key]] = rv[x[key]] || []).push(x);
    return rv;
  }, {});
};

var data = groupBy(userdetail, 'name');
console.log(data);

//access values for steve
for (var k of data['Steve']) {
  console.log(k['phonenumber']);
  console.log(k['phoneType']);
}

.as-console {
  height: 100%;
}

.as-console-wrapper {
  max-height: 100% !important;
  top: 0;
}

@user3558981 there is no jquery here....you can just use apply method and get the best output — Naren Murali, Dec 30 '17 at 06:02

score 0 · Answer 3 · answered Dec 30 '17 at 06:00

0

I prefer Lodash for things like this (data wrangling)...

var results = _.filter(userdetail, {name: 'Steve'});

answered Dec 30 '17 at 06:00

Tallboy

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How can I check if the array of objects have same values

3 Answers3