Run results for: Tuple vs Object vs Class

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.3.2

Device Platform: Mobile

Date tested: 10 months ago

Test name	Executions per second
Array	84.2 Ops/sec
Object	96.7 Ops/sec
Class	91.9 Ops/sec

Script Preparation code:

const N = 1000000;

class Tuple {
  first;
  second;
  constructor(first, second) {
    this.first = first;
    this.second = second;
  }
}

Tests:

Array
const xs = []; for (let i = 0; i < N; i++) { xs.push([i, 0]); }
Object
const xs = []; for (let i = 0; i < N; i++) { xs.push({ first: i, second: 0 }); }
Class
const xs = []; for (let i = 0; i < N; i++) { xs.push(new Tuple(i, 0)); }

Run results for: Tuple vs Object vs Class

Array

Object

Class