Run results for: Lodash cloneDeep vs JSON Clone vs freeze and destructure

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.5

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

freeze and destructure

3.1M/s

Lodash cloneDeep

3.0M/s

Json clone

1.7M/s

View exact numbers

Test name	Executions per second
✓ freeze and destructure	3,078,281 Ops/sec
Lodash cloneDeep	3,018,222 Ops/sec
Json clone	1,723,890 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);
Json clone
myCopy = JSON.parse(JSON.stringify(MyObject));
freeze and destructure
Object.freeze(MyObject); myCopy = { ...MyObject };