Benchmark: Lodash Merge vs CloneDeep

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);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash merge() into {}
Lodash cloneDeep()

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 10 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36

Browser/OS: Chrome 140 on Mac OS X 10.15.7

View result in a separate tab

Lodash merge() into {}

2.5M/s

Lodash cloneDeep()

2.2M/s

View exact numbers

Test name	Executions per second
✓ Lodash merge() into {}	2,525,997 Ops/sec
Lodash cloneDeep()	2,215,465 Ops/sec

Lodash Merge vs CloneDeep (version: 2)

Merge into an empty object vs. deep cloning.

Comparing performance of: `Lodash merge() into {} vs Lodash cloneDeep()`

Created: 11 months ago by: Registered User

Go to the latest result

Lodash merge() into {}

Lodash cloneDeep()

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Lodash Merge vs CloneDeep (version: 2)

Merge into an empty object vs. deep cloning.

Comparing performance of: Lodash merge() into {} vs Lodash cloneDeep()

Created: 11 months ago by: Registered User

Go to the latest result

Lodash merge() into {}

Lodash cloneDeep()

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Lodash merge() into {} vs Lodash cloneDeep()`