Benchmark: for loop vs for loop w/ cached array length

Script Preparation code:

"use strict";
const arr = [];
for (let i=0; i<1000; i++) arr.push(i);

Tests:

uncached
"use strict"; let _ = 0; for (let i=0; i<arr.length; i++){ _ = arr[i]; }
cached
"use strict"; const len = arr.length; let _ = 0; for (let i=0; i<len; i++){ _ = arr[i]; }
cached inline
"use strict"; let _ = 0; for (let len=arr.length, i=0; i<len; i++){ _ = arr[i]; }
hardcoded
"use strict"; let _ = 0; for (let i=0; i<1000; i++){ _ = arr[i]; }

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: 3 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.4 Safari/605.1.15

Browser/OS: Safari 26 on Mac OS X 10.15.7

cached inline

88K/s

cached

88K/s

hardcoded

87K/s

uncached

34K/s

View exact numbers

for loop vs for loop w/ cached array length (version: 1)