Run results for: setPrototypeTest

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser: Chrome 142

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

Object.setPrototypeOf

40K/s

Object.create

39K/s

View exact numbers

Test name	Executions per second
✓ Object.setPrototypeOf	39,783 Ops/sec
Object.create	39,316 Ops/sec

HTML Preparation code:

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

Script Preparation code:

let objListA = [];
let objListB = [];
for(i=0;i<0x10;i++)
{
  objListA[i] = Object.create(objListA[-1] ?? null);
  objListB[i] = Object.create(null);
  objListA[i]['prop'+i] = i * i;
  objListB[i]['prop'+i] = i * i;
  Object.setPrototypeOf(objListB[i],objListB[i-1]??null);
}

Tests:

Object.create
let objListA = []; for(i=0;i<0x10;i++) { objListA[i] = Object.create(objListA[-1] ?? null); objListA[i]['prop'+i] = i * i; }
Object.setPrototypeOf
let objListB = []; for(i=0;i<0x10;i++) { objListB[i] = Object.create(null); objListB[i]['prop'+i] = i * i; Object.setPrototypeOf(objListB[i],objListB[i-1]??null); }