Run results for: Deep copies

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

... operator

27.2M/s

Object.assign

2.9M/s

using json

574K/s

View exact numbers

Test name	Executions per second
✓ ... operator	27,227,894 Ops/sec
Object.assign	2,868,758 Ops/sec
using json	573,589 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

let source ={
  "surname": "Rossi",
  "name": "Mario",
  "cfPiva": "RSSMRA80A01H501Z",
  "plate": "AB123CD",
  "birthDate": "1980-01-01",
  "proviceBirth": "Roma",
  "cityBirth": "Roma",
  "proviceResidence": "Roma",
  "cityResidence": "Roma",
  "company": "XYZ Srl",
  "mainRole": "Amministratore",
  "roles": "Direttore, Manager",
  "injuries": "Nessuno"
};

Tests:

using json
const toSend = JSON.parse(JSON.stringify(source));
... operator
const toSend = { ...source };
Object.assign
const toSend = Object.assign({}, source);