Run results for: Sealed object access vs ordinary object access

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Sealed object access

240.1M/s

Ordinary object access

233.2M/s

View exact numbers

Test name	Executions per second
✓ Sealed object access	240,145,968 Ops/sec
Ordinary object access	233,174,416 Ops/sec

Script Preparation code:

const obj = {a: 1, b: 2, c: 3, d: 4};
const sealedObj = Object.seal({a: 1, b: 2, c: 3, d: 4, __proto__: null});

let v = null;

Tests:

Sealed object access
v = sealedObj.a; v = sealedObj.b; v = sealedObj.c; v = sealedObj.d;
Ordinary object access
v = obj.a; v = obj.b; v = obj.c; v = obj.d;