Run results for: Array initialization: preallocate vs push with objects

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 141

Operating system: Android

Device Platform: Mobile

Date tested: 11 months ago

Benchmark engine: Benchmark.js

Preallocate

17K/s

Push

11K/s

View exact numbers

Test name	Executions per second
✓ Preallocate	17,228 Ops/sec
Push	10,674 Ops/sec

Tests:

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