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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0

Browser: Firefox 112

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Create object by function	81091570.0 Ops/sec
Create object by class	281459.8 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) }