Run results for: Lodash DifferenceWith vs Pure JS

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 Edg/137.0.0.0

Browser: Chrome 137

Operating system: Windows

Device Platform: Desktop

Date tested: 10 months ago

Test name	Executions per second
Pure JS	4076624.2 Ops/sec
Lodash diffrenceWith	4645219.0 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 = [
  52,
  76,
  13,
  96,
  27,
  8,
  23,
  63,
  25,
  1
]

Tests:

Pure JS
const currentIds = new Set(oldArr.map(e => e.id)); newArr.filter(id => !currentIds.has(id));
Lodash diffrenceWith
_.differenceWith(newArr, oldArr, (v, e) => v === e.id);

Run results for: Lodash DifferenceWith vs Pure JS

Pure JS

Lodash diffrenceWith