Run results for: Lodash Merge vs CloneDeep

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 11 months ago

Lodash merge() into {}

5.8M/s

Lodash cloneDeep()

5.0M/s

View exact numbers

Test name	Executions per second
✓ Lodash merge() into {}	5,799,933 Ops/sec
Lodash cloneDeep()	4,983,132 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:

let myCopy = null;

const 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...'
  }
};

Tests:

Lodash merge() into {}
myCopy = _.merge({}, myObject);
Lodash cloneDeep()
myCopy = _.cloneDeep(myObject);

Run results for: Lodash Merge vs CloneDeep

Merge into an empty object vs. deep cloning.

Lodash merge() into {}

Lodash cloneDeep()