Benchmark: let vs var in for - MeasureThat.net

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; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
let in
var in
var out
let out

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36

Browser/OS: Chrome 94 on Windows

View result in a separate tab

Test name	Executions per second
let in	3544.4 Ops/sec
var in	3583.4 Ops/sec
var out	3590.8 Ops/sec
let out	3571.4 Ops/sec