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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36 Edg/113.0.1774.42

Browser: Chrome 113

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Create object by function	543651.8 Ops/sec
Create object by class	63669.7 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) }