Run results for: Lodash DifferenceWith vs Native

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:103.0) Gecko/20100101 Firefox/103.0

Browser: Firefox 103

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Native	1016853.2 Ops/sec
Lodash.js filter	19353.6 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var oldArr = [
  {
    "id": 52
  },
  {
    "id": 76
  },
  {
    "id": 13
  },
  {
    "id": 96
  },
  {
    "id": 27
  },
  {
    "id": 8
  },
  {
    "id": 23
  },
  {
    "id": 63
  },
  {
    "id": 25
  }
]

var newArr = [
{
    "id": 52
  },
  {
    "id": 76
  },
  {
    "id": 13
  },
  {
    "id": 96
  },
  {
    "id": 27
  },
  {
    "id": 8
  },
  {
    "id": 23
  },
  {
    "id": 63
  },
  {
    "id": 25
  },
  {
    "id": 1
  },
]

Tests:

Native
newArr.reduce((ids, {id}) => { return ids.concat( !oldArr.some(oldItem => oldItem.id === id) ? id : [] ); }, [])
Lodash.js filter
_.differenceWith(newArr, oldArr, _.isEqual);

Run results for: Lodash DifferenceWith vs Native

Native

Lodash.js filter