Benchmark: Set.difference vs Filter

Script Preparation code:

var array1 = Array.from({length: 40}, () => Math.floor(Math.random() * 140));
var array2 = Array.from({length: 20}, () => Math.floor(Math.random() * 140));
var setFromArray1 = new Set(array1)
var setFromArray2 = new Set(array2)

Tests:

Set.difference
const setDiff = setFromArray1.difference(setFromArray2)
Array.filter
const arrayFilter = array1.filter(value => array2.indexOf(value))
Array.filter with Set.has
const arrayFilterWithSetHas = array1.filter(value => setFromArray2.has(value))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Set.difference
Array.filter
Array.filter with Set.has

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Browser/OS: Chrome 118 on Windows

View result in a separate tab

Array.filter with Set.has

2.5M/s

Array.filter

958K/s

Set.difference

0/s

View exact numbers

Test name	Executions per second
✓ Array.filter with Set.has	2,532,800 Ops/sec
Array.filter	957,968 Ops/sec
Set.difference	0 Ops/sec

Set.difference vs Filter (version: 2)

Comparing performance of: `Set.difference vs Array.filter vs Array.filter with Set.has`

Created: one year ago by: Registered User

Go to the latest result

Set.difference

Array.filter

Array.filter with Set.has

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Set.difference vs Filter (version: 2)

Comparing performance of: Set.difference vs Array.filter vs Array.filter with Set.has

Created: one year ago by: Registered User

Go to the latest result

Set.difference

Array.filter

Array.filter with Set.has

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Set.difference vs Array.filter vs Array.filter with Set.has`