Benchmark: Caching length property vs getting it each time in the loop

Script Preparation code:

var arr = [];
var count = 1000;
for(var i = 0; i<count; i++)
{
  arr.push(i);
}

Tests:

Cache length
var arrLen = arr.length; var sum = 0; for (var i = 0; i < arrLen; i++){ sum = arr[i]; }
Do not cache
var sum = 0; for (var i = 0; i < arr.length; i++){ sum = arr[i]; }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Cache length
Do not cache

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Latest run results:

Run details: (Test run date: yesterday)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/111.0

Browser/OS: Firefox 111 on Mac OS X 10.15

Test name	Executions per second
Cache length	1499529.0 Ops/sec
Do not cache	1501639.0 Ops/sec

Caching length property vs getting it each time in the loop (version: 1)