Benchmark: Object cloning with Lodash clone vs cloneDeep vs merge vs structuredClone vs JSON.parse(JSON.stringify(o)) 2

HTML Preparation code:

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

Script Preparation code:

var o = {
 a: {
   b: 1,
   c: 2,
   d: 3,
   j: {
     k: [1,2,3],
     l: [4,5,6]
   },
 },
 e: [1,2,3,4,5,6],
 f: 1,
 g: {
   h: 1,
 }
}

Tests:

Lodash clone
const a = _.clone(o)
Lodash cloneDeep
const a = _.cloneDeep(o)
JSON.parse(JSON.stringify(o))
const a = JSON.parse(JSON.stringify(o))
structuredClone
const a = structuredClone(o)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash clone
Lodash cloneDeep
JSON.parse(JSON.stringify(o))
structuredClone

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0

Browser/OS: Firefox 140 on Mac OS X 10.15

View result in a separate tab

Lodash clone

7.0M/s

JSON.parse(JSON.stringify(o))

1.6M/s

structuredClone

1.1M/s

Lodash cloneDeep

592K/s

View exact numbers

Test name	Executions per second
✓ Lodash clone	7,043,139 Ops/sec
JSON.parse(JSON.stringify(o))	1,639,550 Ops/sec
structuredClone	1,124,853 Ops/sec
Lodash cloneDeep	592,180 Ops/sec

Object cloning with Lodash clone vs cloneDeep vs merge vs structuredClone vs JSON.parse(JSON.stringify(o)) 2 (version: 0)

Comparing performance of: `Lodash clone vs Lodash cloneDeep vs JSON.parse(JSON.stringify(o)) vs structuredClone`

Created: 2 years ago by: Guest

Go to the latest result

Lodash clone

Lodash cloneDeep

JSON.parse(JSON.stringify(o))

structuredClone

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Object cloning with Lodash clone vs cloneDeep vs merge vs structuredClone vs JSON.parse(JSON.stringify(o)) 2 (version: 0)

Comparing performance of: Lodash clone vs Lodash cloneDeep vs JSON.parse(JSON.stringify(o)) vs structuredClone

Created: 2 years ago by: Guest

Go to the latest result

Lodash clone

Lodash cloneDeep

JSON.parse(JSON.stringify(o))

structuredClone

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Lodash clone vs Lodash cloneDeep vs JSON.parse(JSON.stringify(o)) vs structuredClone`