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

Run details:

User agent: Mozilla/5.0 (Android 12; Mobile; rv:109.0) Gecko/112.0 Firefox/112.0

Browser: Firefox Mobile 112

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
const num	901633700.0 Ops/sec
const string	902093100.0 Ops/sec
var num	901326100.0 Ops/sec
var string	931544800.0 Ops/sec
let num	890501400.0 Ops/sec
let string	914580200.0 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";