Run results for: Lodash (4.17.11) cloneDeep vs JSON Clone vs structuredClone

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36

Browser: Chrome 146

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 4 months ago

Json clone

2.2M/s

Lodash cloneDeep

2.2M/s

structuredClone

962K/s

View exact numbers

Test name	Executions per second
✓ Json clone	2,210,918 Ops/sec
Lodash cloneDeep	2,166,765 Ops/sec
structuredClone	962,287 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/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);
Json clone
myCopy = JSON.parse(JSON.stringify(MyObject));
structuredClone
myCopy = structuredClone(MyObject);