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_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36

Browser: Chrome 100

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Set spread num	183176.9 Ops/sec
Array from set	183189.1 Ops/sec
Filter	21002.3 Ops/sec
Create Set	195263.5 Ops/sec
For	21466.0 Ops/sec
Set array	88405.1 Ops/sec
Array set string	181609.0 Ops/sec
For string	10894.9 Ops/sec
Create set string	102060.6 Ops/sec
Filter string	5079.8 Ops/sec
Filter string small	363311.2 Ops/sec
Filter number small	373313.0 Ops/sec
Create set small string	967340.0 Ops/sec
Create set small	1158816.5 Ops/sec
For string small	114538.1 Ops/sec
For small	141465.8 Ops/sec
Array set small string	833616.9 Ops/sec
Array set small	990304.5 Ops/sec
Spread set small	1082381.0 Ops/sec
Spread set small string	907073.2 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