Run results for: constructor vs function

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

function

85K/s

constructor

75K/s

View exact numbers

Test name	Executions per second
✓ function	85,237 Ops/sec
constructor	75,259 Ops/sec

Script Preparation code:

class Vector {
  constructor(x, y) {
    this.x = x
    this.y = y
  }
}

function createVector(x, y) {
  return { x, y }
}

window.Vector = Vector
window.createVector = createVector

Tests:

constructor
for (let x = 0; x < 100; x++) { for (let y = 0; y < 100; y++) { new Vector(x, y) } }
function
for (let x = 0; x < 100; x++) { for (let y = 0; y < 100; y++) { createVector(x, y) } }