Benchmark: const vs let vs var vs sloppy (no push invocation) - MeasureThat.net

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()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
var
let
const
sloppy

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

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

Browser/OS: Firefox Mobile 112 on Android

View result in a separate tab

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