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Run results for:
For let vs var vs const
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=614563" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 YaBrowser/24.7.0.0 Safari/537.36
Browser:
Yandex Browser 24
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
for in with const
115K/s
for in with var
112K/s
for in with let
112K/s
View exact numbers
Test name
Executions per second
✓
for in with const
115,481 Ops/sec
for in with var
112,291 Ops/sec
for in with let
111,986 Ops/sec
Script Preparation code:
let array = new Array(100).fill(1); let total = 0;
Tests:
for in with let
for (let i in array) { total += array[i]; }
for in with var
for (var i in array) { total += array[i]; }
for in with const
for (const i in array) { total += array[i]; }