Run results for: Lodash union vs native Set() implementation

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36

Browser: Chrome 73

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
_.union	696958.0 Ops/sec
Set()	423077.2 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

AخA
 
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var a = [1, 2, 3, 4, 5]
var b = [3, 4, 5, 6, 7]

 
var a = [1, 2, 3, 4, 5]var b = [3, 4, 5, 6, 7]

Tests: