Run results for: const vs let vs var (fixed) 2 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36

Browser: Chrome 102

Operating system: Linux

Device Platform: Desktop

Date tested: 2 months ago

Test name	Executions per second
var	26192730.0 Ops/sec
let	27016430.0 Ops/sec
const	26988260.0 Ops/sec

Website performance monitoring

Tests:

var
var g = []; var f = function(x) { g.push(1,2,3) }; f()
let
let g = []; let f = function(x) { g.push(1,2,3) }; f()
const
const g = []; const f = function(x) { g.push(1,2,3) }; f()