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

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 143

Operating system: Android

Device Platform: Mobile

Date tested: 10 months ago

Benchmark engine: Benchmark.js

Lodash cloneDeep

1.3M/s ±3.42%

JSON.stringify

1.1M/s ±0.63%

Native structuredClone

393K/s ±2.07%

View exact numbers

Test name	Executions per second
✓ Lodash cloneDeep	1,332,368 Ops/sec ±3.42%
JSON.stringify	1,099,611 Ops/sec ±0.63%
Native structuredClone	392,602 Ops/sec ±2.07%

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