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

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.1.0; ASUS_X00HD) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.6367.172 Mobile Safari/537.36

Browser: Chrome Mobile 124

Operating system: Android 8.1.0

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
var	1454427.0 Ops/sec
let	1977918.5 Ops/sec
const	504820.5 Ops/sec

Tests:

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