Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
Javascript unique string array
Create a unique array of strings from a possible non-unique array.
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=540433" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Browser:
Chrome 127
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Using an object
2942839.8 Ops/sec
Using a Set
1794565.2 Ops/sec
Tests:
Using an object
const nonUnique = ['one', 'two', 'three', 'three', 'four', 'four', 'five', 'six', 'seven', 'eight', 'nine']; const unique = Object.keys(nonUnique.reduce((acc, item) => { if (!acc[item]) { acc[item] = true }; return acc; }, {}));
Using a Set
const nonUnique = ['one', 'two', 'three', 'three', 'four', 'four', 'five', 'six', 'seven', 'eight', 'nine']; const unique = Array.from(new Set(nonUnique));