Run results for: Direct Array vs Typed Array vs Array

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0

Browser: Firefox 142

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

new TypedArray

162/s

Direct Array

81/s

new Array

74/s

View exact numbers

Tests:

new TypedArray
let arr = new Float32Array(1000000); arr[0] = Math.random(); for (let i = 0; i < 1000000; i++) { arr[i] = arr[i - 1]; }
new Array
let arr = new Array(1000000); arr[0] = Math.random(); for (let i = 0; i < 1000000; i++) { arr[i] = arr[i - 1]; }
Direct Array
let arr = []; arr[0] = Math.random(); for (let i = 0; i < 1000000; i++) { arr[i] = arr[i - 1]; }