Benchmark: array dynamic vs fixed length

Script Preparation code:

var len = 100000;

Tests:

dynamic
var arr = []; for (var i = 0; i < len; i++) { arr.unshift(i); }
fixed
var arr = new Array(len); for (var i = 0; i < len; i++) { arr.unshift(i); }

Rendered benchmark preparation results:

Previous results

Test case name	Result
dynamic
fixed

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Android 12; Mobile; rv:99.0) Gecko/99.0 Firefox/99.0

Browser/OS: Firefox Mobile 99 on Android

Test name	Executions per second
dynamic	58.9 Ops/sec
fixed	8.8 Ops/sec

array dynamic vs fixed length (version: 0)