Run results for: const vs var vs let - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser: Chrome 103

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
const num	1368971000.0 Ops/sec
const string	1371587000.0 Ops/sec
var num	1370571000.0 Ops/sec
var string	1369121000.0 Ops/sec
let num	1370180000.0 Ops/sec
let string	1370159000.0 Ops/sec

Website performance monitoring

Tests:

const num
const a = 12109203910293019120392342342;
const string
const a = "12109203910293019120392342342";
var num
var a = 12109203910293019120392342342;
var string
var a = "12109203910293019120392342342";
let num
let a = 12109203910293019120392342342;
let string
const a = "12109203910293019120392342342";