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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.64 Safari/537.36

Browser: Chrome 101

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
const num	738123000.0 Ops/sec
const string	731956900.0 Ops/sec
var num	734088400.0 Ops/sec
var string	733260400.0 Ops/sec
let num	737221800.0 Ops/sec
let string	728632200.0 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";