Merge two arrays based upon there position to create a new array using lodash

Question

I have two arrays of objects and i would like to merge it based on there position. Below is the example and expected result:

let patientLocation = [
    [{
        "value": "CARDIOLOGY B1 INTERN1 ADMIT PRIMARY TEAM",
        "label": "Team: CARDIOLOGY B1 INTERN1 ADMIT PRIMARY TEAM",
        "filterType": "team"
    }],
    [{
        "value": "CARDIOLOGY B2 INTERN1 ADMIT PRIMARY TEAM",
        "label": "Team: CARDIOLOGY B2 INTERN1 ADMIT PRIMARY TEAM",
        "filterType": "team"
    }]
];


let patientsNames = [
    [{
        "value": "LAST_CARD, FIRST_CARD",
        "label": "LAST_CARD, FIRST_CARD (12345677)",
        "filterType": "name"
    }],
    [{
        "value": "REACT_CARD, FIRST_CARD",
        "label": "REACT_CARD, FIRST_CARD (12345678)",
        "filterType": "name"
    }]
];

Expected Result:

result = [
    [{
        "value": "LAST_CARD, FIRST_CARD",
        "label": "LAST_CARD, FIRST_CARD (12345677)",
        "filterType": "name"
    }, {
        "value": "CARDIOLOGY B1 INTERN1 ADMIT PRIMARY TEAM",
        "label": "Team: CARDIOLOGY B1 INTERN1 ADMIT PRIMARY TEAM",
        "filterType": "team"
    }],
    [{
        "value": "REACT_CARD, FIRST_CARD",
        "label": "REACT_CARD, FIRST_CARD (12345678)",
        "filterType": "name"
    }, {
        "value": "CARDIOLOGY B2 INTERN1 ADMIT PRIMARY TEAM",
        "label": "Team: CARDIOLOGY B2 INTERN1 ADMIT PRIMARY TEAM",
        "filterType": "team"
    }]
];

I have tried this using map but not getting desired result.

result = patientLocation.map(function (e, i) {
            return [e, patientsNames[i]];
          });

So what you want is [A, B] + [C, D] => [[A, C], [B, D]]?

Ian
– Ian

2019-06-17 15:30:14 +00:00
Commented Jun 17, 2019 at 15:30 — Ian
– Ian, Commented Jun 17, 2019 at 15:30
yes. you got that right.

Bonzo
– Bonzo

2019-06-17 15:41:28 +00:00
Commented Jun 17, 2019 at 15:41 — Bonzo
– Bonzo, Commented Jun 17, 2019 at 15:41

Kobe · Accepted Answer · 2019-06-17 15:27:58Z

You don't need lodash for a problem as simple as this one. Use map with the spread operator like this:

let patientLocation = [
    [{
        "value": "CARDIOLOGY B1 INTERN1 ADMIT PRIMARY TEAM",
        "label": "Team: CARDIOLOGY B1 INTERN1 ADMIT PRIMARY TEAM",
        "filterType": "team"
    }],
    [{
        "value": "CARDIOLOGY B2 INTERN1 ADMIT PRIMARY TEAM",
        "label": "Team: CARDIOLOGY B2 INTERN1 ADMIT PRIMARY TEAM",
        "filterType": "team"
    }]
];


let patientsNames = [
    [{
        "value": "LAST_CARD, FIRST_CARD",
        "label": "LAST_CARD, FIRST_CARD (12345677)",
        "filterType": "name"
    }],
    [{
        "value": "REACT_CARD, FIRST_CARD",
        "label": "REACT_CARD, FIRST_CARD (12345678)",
        "filterType": "name"
    }]
];

let arr = patientsNames.map((obj, i) => [...obj, ...patientLocation[i]])

console.log(arr)

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