Run results for: cloneDeep vs structuredClone

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 YaBrowser/25.8.0.0 Safari/537.36

Browser: Yandex Browser 25

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
Lodash cloneDeep	132994.0 Ops/sec
Native structuredClone	117594.4 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var tree = [
  {
    id: '1',
    value: 'node 1',
    children: [
      {
        id: '2',
        value: 'node 2',
        children: [
          {
            id: '3',
            value: 'node 3',
            children: [],
          },
          {
            id: '4',
            value: 'node 4',
            children: [
              {
                id: '5',
                value: 'node 5',
                children: [],
              },
            ],
          },
        ],
      },
    ],
  },
  {
    id: '6',
    value: 'node 6',
    children: [
      {
        id: '7',
        value: 'node 7-1',
        children: [],
      },
    ],
  },
  {
    id: '8',
    value: 'node 8',
    children: [
      {
        id: '7',
        value: 'node 7-2',
        children: [],
      },
    ],
  },
];

var myCopy = null;

Tests:

Lodash cloneDeep
myCopy = _.cloneDeep(tree);
Native structuredClone
myCopy = structuredClone(tree);

Run results for: cloneDeep vs structuredClone

Lodash cloneDeep

Native structuredClone