Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
flatMap vs reduce with spread vs reduce with push
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=522060" 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/124.0.0.0 Safari/537.36
Browser:
Chrome 124
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
reduce with push
31K/s
flatMap
5K/s
reduce with spread
27/s
View exact numbers
Test name
Executions per second
✓
reduce with push
31,017 Ops/sec
flatMap
5,174 Ops/sec
reduce with spread
27 Ops/sec
Script Preparation code:
var arr = Array(10_000).fill(0)
Tests:
reduce with spread
arr.reduce((acc, x) => [...acc, x], [])
flatMap
arr.flatMap(x => [x])
reduce with push
arr.reduce((acc, x) => { acc.push(x); return acc; }, [])