Benchmark: Lodash Uniq vs Lodash UniqBy vs Javascript Set

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.5/lodash.min.js"></script>

Script Preparation code:

var firstEqual = [];
var secondEqual = [];

for (var i=0; i<1000; i++) {
  firstEqual.push({a: {b: {c: i}}});
  secondEqual.push({a: {b: {c: i}}});
}

var arr = [...firstEqual, ...secondEqual];

Tests:

Lodash UniqBy
_.uniqBy(arr, 'a.b.c').map(el =>el.a.b.c)
Javascript Set
[...new Set(arr.map(el => el.a.b.c))]
Lodash Uniq
_.uniq(arr.map(el => el.a.b.c))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash UniqBy
Javascript Set
Lodash Uniq

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Windows

View result in a separate tab

Test name	Executions per second
Lodash UniqBy	2060.0 Ops/sec
Javascript Set	12120.2 Ops/sec
Lodash Uniq	1698.2 Ops/sec

Lodash Uniq vs Lodash UniqBy vs Javascript Set (version: 0)

Comparing performance of: Lodash UniqBy vs Javascript Set vs Lodash Uniq

Created: 3 years ago by: Guest

Jump to the latest result

Lodash UniqBy

Javascript Set

Lodash Uniq

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A