Benchmark: isUnique (Lodash uniqBy vs Set)

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js'></script>

Script Preparation code:

var MyArr = Array.from({
    length: 40
}, () => ({
    x: Math.floor(Math.random() * 40)
}));

function isUniqueLodashUniqBy(arr) {
    return arr.length === _.uniqBy(arr, it => it.x);
}

function isUniqueSet(arr) {
    return arr.length === new Set(arr.map(it => it.x)).size;
}

Tests:

Lodash uniqBy
isUniqueLodashUniqBy(MyArr);
Set
isUniqueSet(MyArr);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash uniqBy
Set

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0

Browser/OS: Firefox 105 on Windows

View result in a separate tab

Test name	Executions per second
Lodash uniqBy	670240.9 Ops/sec
Set	452422.7 Ops/sec

isUnique (Lodash uniqBy vs Set) (version: 0)

Comparing performance of: Lodash uniqBy vs Set

Created: 3 years ago by: Guest

Jump to the latest result

Lodash uniqBy

Set

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A