how to add elements to array using push

Question

Having issues with array data

OUT PUTTING LIKE THIS
 [{
     "createdAt": [Object],
     "date": "2021-08-22",
     "description": "Yes"
   }, {
     "title": "greatt"
   }

I need it to output like this below

    [{
   "createdAt": [Object],
   "date": "2021-08-22",
   "description": "Yes",
   "title": "greatt"
 }

const myList = [];
myList.push(otherArray, {title: 'Hello'})

So you are saying `otherArray` is not an array? That's a confusing name you have there. — trincot, Aug 23 '21 at 18:29
Basically what you want is to append the data inside the last object in array ? — Sanmeet, Aug 23 '21 at 18:30
Yes I would like to append the data inside the last object in array — Jerry Seigle, Aug 23 '21 at 18:31
Your question has actually nothing to do with `push`, nor an array. It is about merging properties from two objects into one. The array is just a story around it. — trincot, Aug 23 '21 at 18:32

score 0 · Accepted Answer · answered Aug 23 '21 at 18:33

The result you're getting indicates that otherArray is not an array, it's a single object

{
    "createdAt": [Object],
    "date": "2021-08-22",
    "description": "Yes"
}

So you're pushing two separate objects onto myList.

If you want to merge an object into another object, you can use Object.assign().

Object.assign(otherArray, {title: 'Hello'});

Then you can do

myList.push(otherArray);

to add that object to the myList array.

score 0 · Answer 2 · answered Aug 23 '21 at 18:41

I think what you want to do is push the extra object values inside the last object of the array ! So here's the solution for that =>

let array = [{
    "createdAt": [Object],
    "date": "2021-08-22",
    "description": "Yes"
  }]

  function push(props , array) {
    let lastIndex = array.length - 1;
    array[lastIndex] = Object.assign(props, array[lastIndex]);
  }

  push({
    title: "Title"
  }, array);

  console.log(array)

For more information about Object.assign checkout MDN

how to add elements to array using push

2 Answers2