Run results for: Direct Array vs Typed Array vs Array read performances

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/130.0.6723.37 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 130

Operating system: iOS 17.6

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

new TypedArray

723/s

Direct Array

185/s

new Array

168/s

View exact numbers

Test name	Executions per second
✓ new TypedArray	723 Ops/sec
Direct Array	185 Ops/sec
new Array	168 Ops/sec

Tests:

new TypedArray
let arr = new Float32Array(1000000); arr[0] = Math.random(); var sum = 0; for (let i = 0; i < 1000000; i++) { sum+= arr[i]; }
new Array
let arr = new Array(1000000); arr[0] = Math.random(); var sum = 0; for (let i = 0; i < 1000000; i++) { sum+= arr[i]; }
Direct Array
let arr = []; arr[0] = Math.random(); var sum = 0; for (let i = 0; i < 1000000; i++) { sum+= arr[i]; }