Benchmark: Lodash cloneDeep vs structuredClone vs JSON Parse

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:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Native structuredClone
JSON Parse

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 3 days ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser/OS: Chrome 121 on Linux

View result in a separate tab

Test name	Executions per second
Lodash cloneDeep	1780870.0 Ops/sec
Native structuredClone	609558.3 Ops/sec
JSON Parse	1233871.0 Ops/sec

Lodash cloneDeep vs structuredClone vs JSON Parse (version: 0)

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

Comparing performance of: Lodash cloneDeep vs Native structuredClone vs JSON Parse

Created: 2 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Native structuredClone

JSON Parse

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A