Run results for: Lodash cloneDeep vs JSON.parse(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

Lodash cloneDeep

1.3M/s

JSON.parse(JSON.stringify())

1.1M/s

Native structuredClone

578K/s

View exact numbers

Test name	Executions per second
✓ Lodash cloneDeep	1,256,382 Ops/sec
JSON.parse(JSON.stringify())	1,113,486 Ops/sec
Native structuredClone	578,352 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var originalObject = {
  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 copiedObject = null;

Tests:

Lodash cloneDeep
copiedObject = _.cloneDeep(originalObject);
Native structuredClone
copiedObject = structuredClone(originalObject);
JSON.parse(JSON.stringify())
copiedObject = JSON.parse(JSON.stringify(originalObject));