Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
let vs const in tight loops
Checks whether using const helps for performance or not compared to using let everywhere
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=588903" 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/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
const
173.7M/s
let
171.2M/s
View exact numbers
Test name
Executions per second
✓
const
173,656,480 Ops/sec
let
171,190,176 Ops/sec
Tests:
let
let x = 100; let y = x + 1; let z = x + y;
const
const x = 100; const y = x + 1; const z = x + y;