Run results for: const vs let vs var (fixed) 234 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Windows

Device Platform: Desktop

Date tested: 2 months ago

Test name	Executions per second
var	49253180.0 Ops/sec
let	50422050.0 Ops/sec
const	47339680.0 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()