Run results for: if vs noop vs noop arrow vs void vs new Function

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 Edg/114.0.1823.82

Browser: Chrome 114

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
if	5285346.0 Ops/sec
noop	5467879.0 Ops/sec
noop arrow	5448253.0 Ops/sec
noop void	5508208.0 Ops/sec
noop2	545471.9 Ops/sec

Script Preparation code:

var undef = undefined;
var noop = function noop() {};
var noopArrow = () => {};
var noopVoid = void {};
var noop2 = function noop2() {
    const x = void {};
    return new Function("return x;"); // this `x` refers to global `x`
}

Tests:

if
if (undef) { undef(); }
noop
noop();
noop arrow
noopArrow();
noop void
noopVoid;
noop2
noop2();

Run results for: if vs noop vs noop arrow vs void vs new Function

if

noop

noop arrow

noop void

noop2