Run results for: Array vs TypedArray write performance %%%%%%%%%%%%

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 26_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/145.0 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 26

Operating system: iOS 26.1

Device Platform: Mobile

Date tested: 10 months ago

Benchmark engine: Benchmark.js

Array write

10K/s

TypedArray write

8K/s

View exact numbers

Test name	Executions per second
✓ Array write	10,258 Ops/sec
TypedArray write	8,328 Ops/sec

Script Preparation code:

var array = new Array(100000).fill(0).map(_x => 0);
var typedArray = new Uint32Array(100000).fill(0);

Tests:

Array write
for (let i=0; i<array.length; i++) { array[i] = array[i] + 1; }
TypedArray write
for (let i=0; i<typedArray.length; i++) { typedArray[i] = typedArray[i] + 1; }