Run results for: const vs let vs var vs sloppy (no push invocation) - 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
var	21213490.0 Ops/sec
let	21232650.0 Ops/sec
const	22358130.0 Ops/sec
sloppy	10211810.0 Ops/sec

Website performance monitoring

Tests:

var
var g = { e: [] } g.o = function(x) { g.e.push } g.o()
let
let g = { e: [] } g.o = function(x) { g.e.push } g.o()
const
const g = { e: [] } g.o = function(x) { g.e.push } g.o()
sloppy
g = { e: [] } g.o = function(x) { g.e.push } g.o()