Run results for: Object freeze vs normal obj access

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 134

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Freeze	128775.3 Ops/sec
No freeze	586551.6 Ops/sec

Script Preparation code:

const baseObj = { ...[ Array.from({ length: 1000 }, () => Math.random().toString(16).slice(2)) ] }

var obj = Object.assign({}, baseObj);
var frozen = Object.freeze(Object.assign({}, baseObj));

Tests:

Freeze
for (let i = 0; i < 1000; i++) { frozen[i] }
No freeze
for (let i = 0; i < 1000; i++) { obj[i] }

Run results for: Object freeze vs normal obj access

Freeze

No freeze