Run results for: es-toolkit cloneDeep vs structuredClone

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser: Chrome 139

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

es-toolkit cloneDeep

916K/s

Native structuredClone

766K/s

View exact numbers

Test name	Executions per second
✓ es-toolkit cloneDeep	916,341 Ops/sec
Native structuredClone	765,919 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/es-toolkit@%5E1"></script>

Script Preparation code:

var MyObject = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  }
};

var myCopy = null;

Tests:

es-toolkit cloneDeep
myCopy = _.cloneDeep(MyObject);
Native structuredClone
myCopy = structuredClone(MyObject);

Run results for: es-toolkit cloneDeep vs structuredClone

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone

es-toolkit cloneDeep

Native structuredClone