Run results for: ArrayBuffer vs JSON serialization

Run details:

User agent: Mozilla/5.0 (Android 9; Mobile; rv:89.0) Gecko/89.0 Firefox/89.0

Browser: Firefox Mobile 89

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
JSON serialization	98.5 Ops/sec
ArrayBuffer serialization	1780.5 Ops/sec

Tests:

JSON serialization
const arr = Array.from({ length: 5000 }).map(() => Math.random()); const serialized = JSON.stringify(arr); const deserialized = JSON.parse(serialized); deserialized.map(x => 0.0); const serializedAgain = JSON.stringify(deserialized);
ArrayBuffer serialization
const arr = Array.from({ length: 5000 }).map(() => Math.random()); const buffer = new ArrayBuffer(arr.length * 4); const view = new Float32Array(buffer, 0, 4); view.map((_, idx) => arr[idx]); view.map(() => 0.0); const view2 = new Float32Array(buffer, 0, 4);