Run results for: Lodash _.union vs the native Set() for multiple arrays

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser: Chrome 129

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
_.union	10553.5 Ops/sec
Set()	20337.8 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js"></script>

Script Preparation code:

var a = [];
var b = [];
var c = [];

for (i = 0; i < 1000; i++) {
    a.push(getRandom());
    b.push(getRandom());
    c.push(getRandom());

    a.sort();
    b.sort();
    c.sort();
}

function getRandom() {
    const minimum = 1;
    const maximum = 1000;
    var randomnumber = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
    return randomnumber;
}

Tests:

_.union
var r = _.union(a, b, c)
Set()
var r = Array.from(new Set([...a, ...b])); r = Array.from(new Set([...r, ...c]));