Run results for: Array initialization: preallocate vs push

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 135

Operating system: Android

Device Platform: Mobile

Date tested: 3 days ago

Test name	Executions per second
Preallocate	29917.8 Ops/sec
Push	9746.6 Ops/sec

Tests:

Preallocate
var N = 10000; var result = new Array(N); for (var i = 0; i < N; i++) { result[i] = N; }
Push
var N = 10000; var result = []; for (var i = 0; i < N; i++) { result.push(N); }