Run results for: Set vs Filter for unique vs for string and numbers

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:101.0) Gecko/20100101 Firefox/101.0

Browser: Firefox 101

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Set spread num	64868.1 Ops/sec
Array from set	65988.4 Ops/sec
Filter	19304.0 Ops/sec
Create Set	102752.6 Ops/sec
For	43659.4 Ops/sec
Set array	20233.0 Ops/sec
Array set string	65085.0 Ops/sec
For string	8343.4 Ops/sec
Create set string	32318.0 Ops/sec
Filter string	3357.6 Ops/sec
Filter string small	261210.2 Ops/sec
Filter number small	447080.8 Ops/sec
Create set small string	332985.2 Ops/sec
Create set small	597530.6 Ops/sec
For string small	126356.1 Ops/sec
For small	171326.8 Ops/sec
Array set small string	210031.3 Ops/sec
Array set small	352121.9 Ops/sec
Spread set small	355517.2 Ops/sec
Spread set small string	212247.3 Ops/sec

Script Preparation code:

var array = Array.from({length: 410}, () => Math.floor(Math.random() * 140));

var arrayA = Array.from({length: 410}, () => Math.random().toString(36).substring(2, 15));

var arrayS = Array.from({length: 40}, () => Math.floor(Math.random() * 140));

var arraySA = Array.from({length: 40}, () => Math.random().toString(36).substring(2, 15));

Tests:

Set spread num
const f = [... new Set(array)]
Array set small
const la = Array.from(new Set(arrayS))
Array set small string
const la = Array.from(new Set(arraySA))
For small
const sa ={} const lca = [] for(let i =0; i < arrayS.length; i++){ if (sa[arrayS[i]]) { continue } sa[arrayS[i]] = 1 lca.push(sa[arrayS[i]]) }
For string small
const sa ={} const lca = [] for(let i =0; i < arraySA.length; i++){ if (sa[arraySA[i]]) { continue } sa[arraySA[i]] = 1 lca.push(sa[arraySA[i]]) }
Create set small
const scsdf = new Set(arrayS)
Create set small string
const scsdfa = new Set(arraySA)
Filter number small
const baas = arrayS.filter((i,index) => arrayS.indexOf(i)=== index)
Filter string small
const baa = arraySA.filter((i,index) => arraySA.indexOf(i)=== index)
Filter string
const ba = arrayA.filter((i,index) => arrayA.indexOf(i)=== index)
Create set string
const sc = new Set(arrayA)
For string
const sa ={} const lca = [] for(let i =0; i < arrayA.length; i++){ if (sa[arrayA[i]]) { continue } sa[arrayA[i]] = 1 lca.push(sa[arrayA[i]]) }
Array set string
const la = Array.from(new Set(array))
Set array
const z = [... new Set(arrayA)]
For
const s ={} const lc = [] for(let i =0; i < array.length; i++){ if (s[array[i]]) { continue } s[array[i]] = 1 lc.push(s[array[i]]) }
Create Set
const ss = new Set(array)
Filter
const b = array.filter((i,index) => array.indexOf(i)=== index)
Array from set
const l = Array.from(new Set(array))
Spread set small
const z = [... new Set(arrayS)]
Spread set small string
const z = [... new Set(arraySA)]

Run results for: Set vs Filter for unique vs for string and numbers

Set spread num

Array set small

Array set small string

For small

For string small

Create set small

Create set small string

Filter number small

Filter string small

Filter string

Create set string

For string

Array set string

Set array

For

Create Set

Filter

Array from set

Spread set small

Spread set small string