Run results for: arguments array vs declared arguments

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36

Browser: Chrome 70

Operating system: Windows

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
arguments	19941.3 Ops/sec
direct	20035.0 Ops/sec

Tests:

arguments
function foo() { return arguments[0] + arguments[1]; } var q = 0; for (var i = 0; i < 10000; i ++) { q += foo(i, i+1); } console.log(q);
direct
function foo(a, b) { return a + b; } var q = 0; for (var i = 0; i < 10000; i ++) { q += foo(i, i+1); } console.log(q);