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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:108.0) Gecko/20100101 Firefox/108.0

Browser: Firefox 108

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
var	21176804.0 Ops/sec
let	18790644.0 Ops/sec
const	22682972.0 Ops/sec

Tests:

var
var g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()
let
let g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()
const
const g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()