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Run results for:
Array initialization: preallocate vs push with objects
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Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 144
Operating system:
Android
Device Platform:
Mobile
Date tested:
4 months ago
Test name
Executions per second
Preallocate
16958.6 Ops/sec
Push
14198.5 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}); }