Run results for: for-loop cached variables / access caching + V8 hints

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.4972.0 Safari/537.36

Browser: Chrome 102

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
caching variable (for global)	417808.2 Ops/sec
single access cache	411119.2 Ops/sec
zero cache - 3x access	277277.8 Ops/sec
caching variable (for global) V8 hints	409326.5 Ops/sec

Script Preparation code:

var arr = [31,12321,213,21321,321321,321321,1];
var processFunc = a => a + 1;

Tests:

caching variable (for global)
for (let i = arr.length, tmp; i--;) { processFunc(tmp = arr[i]); processFunc(tmp); processFunc(tmp); };
single access cache
for (let i = arr.length; i--;) { let tmp = arr[i]; processFunc(tmp); processFunc(tmp); processFunc(tmp); };
zero cache - 3x access
for (let i = arr.length; i--;) { processFunc(arr[i]); processFunc(arr[i]); processFunc(arr[i]); };
caching variable (for global) V8 hints
for (let i = arr.length, tmp = 0; i--;) { processFunc(tmp = arr[i]); processFunc(tmp); processFunc(tmp); };