Run results for: Lodash cloneDeep vs structuredClone vs naive JSON.stringify

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Lodash cloneDeep

1.8M/s ±0.36%

JSON.stringify

1.3M/s ±0.18%

Native structuredClone

729K/s ±0.87%

View exact numbers

Test name	Executions per second
✓ Lodash cloneDeep	1,772,479 Ops/sec ±0.36%
JSON.stringify	1,287,077 Ops/sec ±0.18%
Native structuredClone	728,895 Ops/sec ±0.87%

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.stringify
myCopy = JSON.parse(JSON.stringify(MyObject));

Run results for: Lodash cloneDeep vs structuredClone vs naive JSON.stringify

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

Lodash cloneDeep

Native structuredClone

JSON.stringify