Run results for: Set vs Filter for unique

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 14

Operating system: iOS 14.4.2

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Set spread	173164.8 Ops/sec
Array from set	169626.1 Ops/sec
Filter	329737.8 Ops/sec

Script Preparation code:

var array = Array.from({length: 40}, () => Math.floor(Math.random() * 140));

AخA
 
var array = Array.from({length: 40}, () => Math.floor(Math.random() * 140));

Tests:

Set spread
const f = [... new Set(array)]
const f = [... new Set(array)]
Array from set
const s = new Set(array) const l = Array.from(s)
const s = new Set(array)
const l = Array.from(s)

Filter

const b = array.filter((i,index) => array.indexOf(i)=== index)

 
const b = array.filter((i,index) => array.indexOf(i)=== index)

Run results for: Set vs Filter for unique

Set spread

Array from set

Filter