Run results for: ramda union vs Set for merging array with Object.keys

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Set

2.4M/s

R.union

1.6M/s

View exact numbers

Test name	Executions per second
✓ Set	2,446,902 Ops/sec
R.union	1,615,909 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/ramda/0.26.1/ramda.min.js'></script>

Tests:

Set
const first = ["andrey", "alexey", "vasya", "misha", "petya"]; const obj = { vasya: true, petya: true, kolya: true }; return new Set([...first, ...Object.keys(obj)]);
R.union
const first = ["andrey", "alexey", "vasya", "misha", "petya"]; const obj = { vasya: true, petya: true, kolya: true }; return R.union(first, Object.keys(obj));