How to make Array List inside Object Javascript [duplicate]

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
– adiga, Commented Aug 26, 2019 at 9:30

Neel Rathod · Accepted Answer · 2019-08-26 10:50:04Z

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, 2019 at 10:50

answered Aug 26, 2019 at 9:36

Neel Rathod

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3 Comments

NARGIS PARWEEN Over a year ago

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.

Neel Rathod Over a year ago

Please paste your object here

Neel Rathod Over a year ago

Try this in chrome's console ``` const obj = {}; obj.a = 'A'; console.log(obj); ```

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