Run results for: test forin vs keys+foreach+for

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

test for

9.8M/s

for in test

3.4M/s

keys+foreach

3.1M/s

View exact numbers

Test name	Executions per second
✓ test for	9,811,121 Ops/sec
for in test	3,409,106 Ops/sec
keys+foreach	3,098,286 Ops/sec

HTML Preparation code:

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

Script Preparation code:

  let temp = {
  "surname": "Verdi",
  "name": "Giovanni",
  "cfPiva": "VRDGVN90C12E567Z",
  "plate": "IJ789KL",
  "birthDate": "1990-10-20",
  "proviceBirth": "Torino",
  "cityBirth": "Torino",
  "proviceResidence": "Torino",
  "cityResidence": "Torino",
  "company": "LMN Srl",
  "mainRole": "Ingegnere",
  "roles": "Sviluppatore, Progettista",
  "injuries": "Nessuno"
};let imports={};

Tests:

for in test
for (const key in temp) { imports[key] = "true"; }
keys+foreach
Object.keys(temp).forEach(key => { imports[key] = "true"; });
test for
let array = Object.keys(temp); for (let index = 0; index < array.length; index++) { imports[array[i]] = "true"; }