Run results for: Lodash cloneDeep vs clone

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Windows

Device Platform: Desktop

Date tested: 3 months ago

Test name	Executions per second
Lodash cloneDeep	1105071.6 Ops/sec
Vanilla clone	4147275.8 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,
  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);
Vanilla clone
function clone(obj) { const clone = Object.create(Object.getPrototypeOf(obj)); Object.getOwnPropertyNames(obj).forEach(key => { Object.defineProperty(clone, key, Object.getOwnPropertyDescriptor(obj, key)); }); return clone; } myCopy = clone(MyObject);

Run results for: Lodash cloneDeep vs clone

Lodash cloneDeep

Vanilla clone