Run results for: Reflect.set vs Object.assign vs Direct assignment

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/104.0.5112.88 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 104

Operating system: iOS 15.6

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Reflect.set	13367.8 Ops/sec
Object.assign	1594.0 Ops/sec
Direct assignment	63476.3 Ops/sec

Script Preparation code:

var numbers = Array(1000).fill(null).map((x, i) => i.toString());

Tests:

Reflect.set
numbers.reduce((acc, n) => Reflect.set(acc, n, n) && acc, {});
Object.assign
numbers.reduce((acc, n) => Object.assign(acc, { [n]: n }), {});
Direct assignment
numbers.reduce((acc, n) => { acc[n] = n; return acc }, {});