Run results for: Lodash cloneDeep vs structuredClone vs naive JSON.stringify vs produce

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser: Chrome 117

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Lodash cloneDeep	1376939.9 Ops/sec
Native structuredClone	516774.2 Ops/sec
JSON.stringify	948916.5 Ops/sec
Immer Produce	318339.5 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js' ></script>
<script src="https://unpkg.com/immer@9.0.21/dist/immer.umd.production.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); myCopy.jayson.parse = "something else";
Native structuredClone
myCopy = structuredClone(MyObject); myCopy.jayson.parse = "something else";
JSON.stringify
myCopy = JSON.parse(JSON.stringify(MyObject)); myCopy.jayson.parse = "something else";
Immer Produce
const result = immer.produce(MyObject, draft => { draft.jayson.parse = "something else" });

Run results for: Lodash cloneDeep vs structuredClone vs naive JSON.stringify vs produce

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone

Lodash cloneDeep

Native structuredClone

JSON.stringify

Immer Produce