How find first array of objects id in second array of object and assign second array of object in new object (Problem is that i have two array data )?

Question

Problem is that i have two array data and MfaData.
if data.mfaserviceid same as mfaData.id then assign mfa_name to this array of object.

const mfaData = [
  {
    id: 1,
    mfa_name: "PASSWORD",
    isActive: true,
  },
  {
    id: 2,
    mfa_name: "PIN",
  },
  {
    id: 3,
    mfa_name: "GRID",
  },
  {
    id: 4,
    mfa_name: "PASSCODE",
  },
  {
    id: 5,
    mfa_name: "QUESTION",
  },
];

const data = [
  {
    id: 18,
    channelname: "POS",
    mfaserviceid: "3",
  },
  {
    id: 19,

    channelname: "POS",
    mfaserviceid: "2",
  },
  {
    id: 20,
    channelname: "POS",
    mfaserviceid: "1",
  },
  {
    id: 21,
    channelname: "POS",
    mfaserviceid: "1",
  },
  {
    id: 22,
    channelname: "POS",
    mfaserviceid: "2",
  },
  {
    id: 23,
    channelname: "POS",
    mfaserviceid: "3",
  },
  {
    id: 24,
    channelname: "POS",
    mfaserviceid: "4",
  },
  {
    id: 25,
    channelname: "POS",
    mfaserviceid: "5",
  },
  {
    id: 26,
    channelname: "POS",
    mfaserviceid: "1",
  },
  {
    id: 27,
    channelname: "POS",
    mfaserviceid: "2",
  },
  {
    id: 28,

    channelname: "POS",
    mfaserviceid: "3",
  },
  {
    id: 29,

    channelname: "POS",
    mfaserviceid: "4",
  },
  {
    id: 30,

    channelname: "POS",
    mfaserviceid: "5",
  },
  {
    id: 31,
    channelname: "UPI",
    mfaserviceid: "1",
  },
  {
    id: 32,
    channelname: "UPI",
    mfaserviceid: "2",
  },
];

logic i implementd but not working

const mergedRes = data.map((item, i) => Object.assign({}, item, mfaData[i]));

the result i want in this way

const mergedRes = [
  {
    id: 1,
    channelname: "POS",
    mfa_name: "PASSWORD", // this is from mfaData
    mfaserviceid: "3",
  },
  {
    id: 1,
    channelname: "POS",
    mfa_name: "PASSWORD", // here i want to get mfa_name from mfaData
    mfaserviceid: "3",
  },
];

/// Problem is that i have two array data and MfaData. if data.mfaserviceid same as mfaData.id then assign mfa_name to this array of object. //// /// Problem is that i have two array data and MfaData. if data.mfaserviceid same as mfaData.id then assign mfa_name to this array of object. ///

also [how to merge two arrays of objects in javascript?](https://stackoverflow.com/questions/71048528/how-to-merge-two-arrays-of-objects-in-javascript) — pilchard, Oct 06 '22 at 07:01
*"if data.mfaserviceid same as mfaData.id then assign mfa_name to this array of object."* Why does the result have `id: 1` and `mfaserviceid:"3"`? Not only do they not match as numbers, they don't match types as well. — zer00ne, Oct 06 '22 at 07:10

score 0 · Answer 1 · answered Oct 06 '22 at 07:05

0

for(let i = 0 ; i < mfaData.length ; i++){
    
    for(let j = 0 ; j < data.length ;j++ ){
        if(+data[j].mfaserviceid === mfaData[i].id){
            data[j].mfa_name = mfaData[i].mfa_name
        }
    }
    
}
console.log(data)

try this

answered Oct 06 '22 at 07:05

HiddenOne1254

146
1
6

score 0 · Answer 2 · answered Oct 06 '22 at 07:16

What your asking is if data.mfaserviceid === mfaData.id then merge the mfa_name with the object from data. This cannot be done in a single map I do not think.

const mergedArray = [];

for (let i = 0; i < mfaData.length; i++) {
  const mfaElement = mfaData[i];

  for (let j = 0; j < data.length; j++) {
    const dataElement = data[j];

    if (parseInt(dataElement.mfaserviceid) === mfaElement.id) {
      mergedArray.push({ mfa_name: mfaElement.mfa_name, ...dataElement });
    }
  }
}

This is the slow way, I do not know what your non-functional requirements are. This loops through both arrays. mfaserviceid is a string so you have to cast it to a number and compare it to mfaElement.id. If they are equal, then we can use ES 6 spread operator to merge mfa_name with the existing object from data.

How find first array of objects id in second array of object and assign second array of object in new object (Problem is that i have two array data )?

2 Answers2