Run results for: Lodash cloneDeep vs structuredClone vs Json.stringify

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 137

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

Lodash cloneDeep

1000K/s ±1.29%

Json.stringify

986K/s ±1.27%

structuredClone

208K/s ±1.56%

View exact numbers

Test name	Executions per second
✓ Lodash cloneDeep	999,686 Ops/sec ±1.29%
Json.stringify	985,902 Ops/sec ±1.27%
structuredClone	208,212 Ops/sec ±1.56%

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);
structuredClone
myCopy = structuredClone(MyObject);
Json.stringify
myCopy = JSON.parse(JSON.stringify(MyObject));