Run results for: Set Union using add vs. Native Set Union

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Browser: Chrome 144

Operating system: Linux

Device Platform: Desktop

Date tested: 6 months ago

Javascript Set Union using add

6K/s

Javascript Set Union

5K/s

View exact numbers

Test name	Executions per second
✓ Javascript Set Union using add	5,785 Ops/sec
Javascript Set Union	4,687 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>

Script Preparation code:

const first = new Set([...Array(10000)].map(it => String(~~(Math.random() * 10000))));
const second = new Set([...Array(10000)].map(it => String(~~(Math.random() * 200000))));

class MySet extends Set {
    union(other) {
        other.forEach(el => {
            this.add(el);
        });
        return this;
    }
}

const firstSet = new MySet(first);
const secondSet = new MySet(second);

Tests:

Javascript Set Union
first.union(second)
Javascript Set Union using add
firstSet.union(second)