Run results for: Array vs UInt8Array resizing

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:131.0) Gecko/20100101 Firefox/131.0

Browser: Firefox 131

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Uint8Array

374/s

Array

98/s

View exact numbers

Test name	Executions per second
✓ Uint8Array	374 Ops/sec
Array	98 Ops/sec

Script Preparation code:

c = new Uint8Array([255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255])

Tests:

Uint8Array
let stream = new Uint8Array() let a = 1000 while (a --> 0) { const buf = new Uint8Array(stream.length + c.length); buf.set(stream, 0); buf.set(c, stream.length); stream = buf; }
Array
let stream = [] let a = 1000 const push = Array.prototype.push; while (a --> 0) { push.apply(stream, c) new Uint8Array(stream) }