Benchmark: get unique entries from two arrays

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>

Script Preparation code:

var a = "this test is going to be an absolute unit of a thing and I can guarantee a riot".split(' ');
var b = "this test could possibly work out for many of us but will be a riot".split(' ');

Tests:

uniq spread
return _.uniq([...a,...b]);
set spread
return [...new Set([...a,...b])];
uniq _concat
return _.uniq(_.concat(a,b));
set _concat
return [...new Set(_.concat(a,b))];
uniq [concat]
return _.uniq(a.concat(b));
set [concat]
return [...new Set(a.concat(b))];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
uniq spread
set spread
uniq _concat
set _concat
uniq [concat]
set [concat]

Fastest: N/A

Slowest: N/A

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Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser/OS: Chrome 126 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
uniq spread	1266659.0 Ops/sec
set spread	1461362.0 Ops/sec
uniq _concat	1004040.0 Ops/sec
set _concat	1094148.0 Ops/sec
uniq [concat]	1232891.0 Ops/sec
set [concat]	1426510.0 Ops/sec

get unique entries from two arrays (version: 3)

Comparing performance of: uniq spread vs set spread vs uniq _concat vs set _concat vs uniq [concat] vs set [concat]

Created: one month ago by: Registered User

Jump to the latest result

uniq spread

set spread

uniq _concat

set _concat

uniq [concat]

set [concat]

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A