Run results for: Lodash CloneDeep vs Native spread

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.2 Safari/605.1.15

Browser: Safari 13

Operating system: Mac OS X 10.15.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Native	477461.3 Ops/sec
Lodash.js cloneDeep	192071.4 Ops/sec

HTML Preparation code:

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

Script Preparation code:

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

Tests:

Native
arr.map(elem => ({ ...elem, className: 'pizza' }))
Lodash.js cloneDeep
_.cloneDeep(arr).map(elem => { elem.className = 'pizza'; return elem; })

Run results for: Lodash CloneDeep vs Native spread

Native

Lodash.js cloneDeep