Run results for: Lodash cloneDeep vs structuredClone vs Json.stringify

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Lodash cloneDeep

1.8M/s ±0.27%

Json.stringify

1.3M/s ±2.17%

structuredClone

808K/s ±0.87%

View exact numbers

Test name	Executions per second
✓ Lodash cloneDeep	1,816,990 Ops/sec ±0.27%
Json.stringify	1,333,351 Ops/sec ±2.17%
structuredClone	808,267 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);
structuredClone
myCopy = structuredClone(MyObject);
Json.stringify
myCopy = JSON.parse(JSON.stringify(MyObject));