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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=611146" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
let
881/s
var
874/s
View exact numbers
Test name
Executions per second
✓
let
881 Ops/sec
var
874 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);