Run results for: Deep cloning comparison - Native vs. JSON vs. Lodash

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Safari/605.1.15

Browser: Safari 16

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Lodash cloneDeep	796948.7 Ops/sec
Native JS structuredClone	531096.3 Ops/sec
JSON parse + stringify	568244.6 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 MyObject = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  mySet: new Set([1, 2, 3, 4, 5]),
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  myDate: new Date()
};

var myCopy = null;

Tests:

Lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
Native JS structuredClone
myCopy = structuredClone(MyObject);
JSON parse + stringify
myCopy = JSON.parse(JSON.stringify(MyObject));

Run results for: Deep cloning comparison - Native vs. JSON vs. Lodash

Lodash cloneDeep

Native JS structuredClone

JSON parse + stringify