Run results for: class vs object

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 119

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
class	96209.8 Ops/sec
object	135983.6 Ops/sec

Tests:

class
const reportsData = Array(1000).map((_, index) => ({ user: { id: index, name: 'user' + index } })); class Report { constructor(report) { this.report = report; } reporterId() { this.report.user.id; } reporterName() { this.report.user.name; } } const classReports = reportsData.map(data => new Report(data)); classReports.forEach(report => console.log(report.reporterId, reporter.name))
object
const reportsData = Array(1000).map((_, index) => ({ user: { id: index, name: 'user' + index } })); const createReport = (report) => { return { ...report, get reporterId() { return this.user.id }, get reporterName() { return this.user.name }, } } const objectReports = reportsData.map(data => createReport(data)); objectReports.forEach(report => console.log(report.reporterId, reporter.name))