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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Set spread num	146552.5 Ops/sec
Array from set	142531.2 Ops/sec
Filter	30007.8 Ops/sec
Create Set	175267.6 Ops/sec
For	22183.5 Ops/sec
Set array	121482.5 Ops/sec
Array set string	146932.2 Ops/sec
For string	7966.8 Ops/sec
Create set string	99312.4 Ops/sec
Filter string	7449.0 Ops/sec
Filter string small	398794.1 Ops/sec
Filter number small	408969.7 Ops/sec
Create set small string	1068730.2 Ops/sec
Create set small	1138240.6 Ops/sec
For string small	121195.6 Ops/sec
For small	146205.1 Ops/sec
Array set small string	784560.6 Ops/sec
Array set small	691423.6 Ops/sec
Spread set small	745670.6 Ops/sec
Spread set small string	751576.0 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