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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36

Browser: Chrome 93

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
let in	3115.8 Ops/sec
var in	3159.5 Ops/sec
var out	3103.2 Ops/sec
let out	3116.3 Ops/sec

Tests:

let in
let x; for( let i = 0; i < 1000000; i++) { x = i; }
var in
let x; for( var i = 0; i < 1000000; i++) { x = i; }
var out
let x; var i; for( i = 0; i < 1000000; i++) { x = i; }
let out
let x; let i; for( i = 0; i < 1000000; i++) { x = i; }