Run results for: Object.create(null) vs {} / Nullish coalescing assignment

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Object.create(null);	660.5 Ops/sec
{}	802.3 Ops/sec

Tests:

Object.create(null);
const obj = Object.create(null); for (i = 0; i < 100_000; i++) { obj[i] ??= i; }
{}
const obj = {}; for (i = 0; i < 100_000; i++) { obj[i] ??= i; }