Benchmark: Lodash cloneDeep vs structuredClone vs JSON.parse+JSON.stringify

HTML Preparation code:

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

Native structuredClone
myCopy = structuredClone(MyObject);
Lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
JSON.parse+JSON.stringify
myCopy = JSON.parse(JSON.stringify(MyObject));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native structuredClone
Lodash cloneDeep
JSON.parse+JSON.stringify

Fastest: N/A

Slowest: N/A

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Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser/OS: Chrome 109 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Native structuredClone	535005.4 Ops/sec
Lodash cloneDeep	1432729.0 Ops/sec
JSON.parse+JSON.stringify	682985.8 Ops/sec

Lodash cloneDeep vs structuredClone vs JSON.parse+JSON.stringify (version: 0)

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

Comparing performance of: Native structuredClone vs Lodash cloneDeep vs JSON.parse+JSON.stringify

Created: one year ago by: Guest

Jump to the latest result

Native structuredClone

Lodash cloneDeep

JSON.parse+JSON.stringify

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A