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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6.1 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 months ago

Test name	Executions per second
Create object by function	9883335.0 Ops/sec
Create object by class	1731881.6 Ops/sec

Tests:

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