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Run results for:
Var vs Let
Just a simple test with var/let performance in for loop
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<iframe src="https://measurethat.net/Embed?id=578702" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
var
265/s
let
232/s
View exact numbers
Test name
Executions per second
✓
var
265 Ops/sec
let
232 Ops/sec
Tests:
var
for(var i=1;i<=1000;i++) console.log(i);
let
for(let i=1;i<=1000;i++) console.log(i);