How to make Array List inside Object Javascript

Question

I am having the result set from DB as

{
    "scrapped_name": [
        "harry mccracken"
    ],
    "publications": [
        {
            "_id": "5d3021a6eedfed29a7b5ae75",
            "name": "Fast Company"
        },
        {
            "_id": "5d3021a6eedfed1728b5ae7c",
            "name": null
        }
    ],
    "language": [],
    "location": [],
    "_id": "5d3021a6eedfed37d3b5ae88",
    "name": "harry mccracken",
    "createdAt": "2019-07-18T07:37:10.626Z",
    "updatedAt": "2019-07-18T07:37:10.626Z",
    "social_media": []
}

1) I need to perform some activity on result data set and then I need to make the result set same as the above but this time I need to make it manually.I am facing issue while making the Publication array inside the object. 2) Can someone help me for pushing the new key value in my result set. like I have the above result from the DB query now I want to push the new key like :

publisher : true

So the resultant array I want in my second question is:

{
    "scrapped_name": [
        "harry mccracken"
    ],
    "publications": [
        {
            "_id": "5d3021a6eedfed29a7b5ae75",
            "is_followed": true,
            "name": "Fast Company"
        },
        {
            "_id": "5d3021a6eedfed1728b5ae7c",
            "is_followed": false,
            "name": null
        }
    ],
    "language": [],
    "location": [],
    "_id": "5d3021a6eedfed37d3b5ae88",
    "name": "harry mccracken",
    "createdAt": "2019-07-18T07:37:10.626Z",
    "updatedAt": "2019-07-18T07:37:10.626Z",
    "social_media": [],
    "publisher": true
}

Above Is followed will be dynamically calculated from other table in runtime.

Loop through the `publications` array and add `is_followed` to each object? — adiga, Aug 26 '19 at 09:30

Neel Rathod · Answer 1 · 2019-08-26T10:50:04.487

0

         const object = {
    scrapped_name: [
      'harry mccracken',
    ],
    publications: [
      {
        _id: '5d3021a6eedfed29a7b5ae75',
        name: 'Fast Company',
      },
      {
        _id: '5d3021a6eedfed1728b5ae7c',
        name: null,
      },
    ],
    language: [],
    location: [],
    _id: '5d3021a6eedfed37d3b5ae88',
    name: 'harry mccracken',
    createdAt: '2019-07-18T07:37:10.626Z',
    updatedAt: '2019-07-18T07:37:10.626Z',
    social_media: [],
  };
  
  object.publisher = true; // Added a key `publisher`
  // Customise `publications` array
  if (object.publications && Array.isArray(object.publications)) {
    object.publications.forEach((f) => {
      const referenceObj = f;
      let hasFollow = false;
      if (f._id && f._id === '5d3021a6eedfed29a7b5ae75') {
        hasFollow = true;
      }
      referenceObj.is_followed = hasFollow;
    });
  }
  
  console.log(object);

edited Aug 26 '19 at 10:50

answered Aug 26 '19 at 09:36

Neel Rathod

2,013
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I am also using object.publisher = true, but it is not adding the value into the object. Please help me to add the value to the Object. – NARGIS PARWEEN Aug 26 '19 at 10:49
Please paste your `object` here – Neel Rathod Aug 26 '19 at 10:50
Try this in chrome's console ``` const obj = {}; obj.a = 'A'; console.log(obj); ``` – Neel Rathod Aug 26 '19 at 10:52

How to make Array List inside Object Javascript

1 Answers1