Run results for: Object creation: arrow function vs. class

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.5

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Create object by function	5402839.0 Ops/sec
Create object by class	1669663.9 Ops/sec

Tests:

Create object by function
const carFactory = (brand, seats) => ({ brand, seats }) for(let i = 0; i < 20; i++) { carFactory(`brand-${i}`, 5) }
Create object by class
class Car { brand; seats; constructor(brand, seats) { this.brand = brand; this.seats = seats; } } for(let i = 0; i < 20; i++) { new Car(`brand-${i}`, 5) }