Run results for: forEach(item) vs forEach(item, index, array)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser: Chrome 69

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
forEach(item) ...	8035539.0 Ops/sec
forEach(function(item, index, array) ...	7687259.0 Ops/sec

Script Preparation code:

var arr = ['1', '2', '3'];

Tests:

forEach(item) ...
var x; arr.forEach(function(item) { x = item * 10; });
forEach(function(item, index, array) ...
var x; arr.forEach(function(item, index, array) { // index && item not used x = item * 10; });