Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
Filter Boolean vs. Custom Function
Testing the performance of the idiomatic .filter(Boolean) vs. filtering by a custom coercing function.
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=552418" 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/128.0.0.0 Safari/537.36
Browser:
Chrome 128
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
filter(Boolean)
9495.9 Ops/sec
filter function
21549.0 Ops/sec
Script Preparation code:
var arr = Array.from({length: 10000}, () => Math.random() > 0.5 ? null : "foo");
Tests:
filter(Boolean)
const numTruthy = arr.filter(Boolean).length; console.log(numTruthy);
filter function
const numTruthy = arr.filter(x => !!x).length; console.log(numTruthy);