Run results for: new Uint8Array() vs Uint8Array.from()

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/121.0.6167.171 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 121

Operating system: iOS 17.3

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Test new Uint8Array()

4.8M/s

Test Uint8Array.from()

4.4M/s

View exact numbers

Test name	Executions per second
✓ Test new Uint8Array()	4,801,731 Ops/sec
Test Uint8Array.from()	4,396,536 Ops/sec

Script Preparation code:

var randomArray = Array.from({ length: 1000 }, () => Math.floor(Math.random() * 256))

Tests:

Test new Uint8Array()
new Uint8Array(randomArray)
Test Uint8Array.from()
Uint8Array.from(randomArray)

Run results for: new Uint8Array() vs Uint8Array.from()

Test ArrayBuffer creation methods on a random Array

Test new Uint8Array()

Test Uint8Array.from()