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Run results for:
Create an array with unique values - Lodash Uniq vs Javascript Set vs filter
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<iframe src="https://measurethat.net/Embed?id=537536" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Lodash Uniq
385.7 Ops/sec
Javascript Set
700.3 Ops/sec
JavaScript .filter()
804.7 Ops/sec
HTML Preparation code:
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.5/lodash.min.js"></script>
Tests:
Lodash Uniq
let counter = 1e5; const arr = []; while(counter--) { arr.push(i); arr.push(i); } _.uniq(arr);
Javascript Set
let counter = 1e5; const set = new Set(); while(counter--) { set.add(i); set.add(i); } [...set];
JavaScript .filter()
let counter = 1e5; const arr = []; while(counter--) { arr.push(i); arr.push(i); } function onlyUnique(value, index, self) { return self.indexOf(value) === index; } arr.filter(onlyUnique);