Benchmark: Lodash cloneDeep vs structuredClone vs cloneObject (custom func)

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;

function cloneObject(o) {
	if (typeof o !== 'object' || o === null) return o;

	let out = Array.isArray(o) ? [] : {};

	for (let k in o) {
		out[k] = (typeof o[k] === "object" && o[k] !== null)
			? cloneObject(o[k])
			: o[k];
	}

	return out;
}

Tests:

Lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
Native structuredClone
myCopy = structuredClone(MyObject);
My shitty simple clone logic
myCopy = cloneObject(MyObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Native structuredClone
My shitty simple clone logic

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser/OS: Chrome 109 on Linux

View result in a separate tab

Test name	Executions per second
Lodash cloneDeep	571579.1 Ops/sec
Native structuredClone	241363.4 Ops/sec
My shitty simple clone logic	1168613.0 Ops/sec

Lodash cloneDeep vs structuredClone vs cloneObject (custom func) (version: 0)

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

Comparing performance of: Lodash cloneDeep vs Native structuredClone vs My shitty simple clone logic

Created: one year ago by: Guest

Jump to the latest result

Lodash cloneDeep

Native structuredClone

My shitty simple clone logic

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A