Benchmark: klona vs structuredClone vs JSON.parse(JSON.stringify())

HTML Preparation code:

<script src='https://unpkg.com/klona@2.0.6/json/index.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:

klona
myCopy = klona.klona(MyObject);
Native structuredClone
myCopy = structuredClone(MyObject);
JSON.parse(JSON.stringify())
myCopy = JSON.parse(JSON.stringify(MyObject));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
klona
Native structuredClone
JSON.parse(JSON.stringify())

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 136 on Android

View result in a separate tab

klona

4.4M/s

JSON.parse(JSON.stringify())

1.2M/s

Native structuredClone

401K/s

View exact numbers

Test name	Executions per second
✓ klona	4,380,840 Ops/sec
JSON.parse(JSON.stringify())	1,165,241 Ops/sec
Native structuredClone	400,969 Ops/sec

klona vs structuredClone vs JSON.parse(JSON.stringify()) (version: 1)

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

Comparing performance of: `klona vs Native structuredClone vs JSON.parse(JSON.stringify())`

Created: one year ago by: Registered User

Go to the latest result

klona

Native structuredClone

JSON.parse(JSON.stringify())

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

klona vs structuredClone vs JSON.parse(JSON.stringify()) (version: 1)

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

Comparing performance of: klona vs Native structuredClone vs JSON.parse(JSON.stringify())

Created: one year ago by: Registered User

Go to the latest result

klona

Native structuredClone

JSON.parse(JSON.stringify())

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Comparing performance of: `klona vs Native structuredClone vs JSON.parse(JSON.stringify())`