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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 MicroMessenger/8.0.33(0x18002124) NetType/WIFI Language/zh_CN

Browser: Mobile Safari 16

Operating system: iOS 16.3.1

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
_.union	3127334.0 Ops/sec
Set()	4382636.0 Ops/sec
Set() convert back to array	3061937.0 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 = [1, 2, 3, 4, 5]
var b = [3, 4, 5, 6, 7]

Tests:

_.union
var c = _.union(a, b)
Set()
var c = new Set(a, b)
Set() convert back to array
var c = new Set(a, b) var d = Array.from(c)

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

_.union

Set()

Set() convert back to array