Benchmark: Array.filter VS Array.toSpliced for element deletion by value

Script Preparation code:

function makeTestArray(sym) {
    const arr = Array.from({
        length: 10_000
    }).map((_, i) => i)

    arr[Math.floor(Math.random() * arr.length)] = sym
    return arr
}

Tests:

Array.toSpliced
const deleteElement = Symbol() const arr = makeTestArray(deleteElement) const deleteIndex = arr.findIndex((e) => e == deleteElement) const newArr = arr.toSpliced(deleteIndex, 1)
Array.filter
const deleteElement = Symbol() const arr = makeTestArray(deleteElement) const newArr = arr.filter((e) => e != deleteElement)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.toSpliced
Array.filter

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:131.0) Gecko/20100101 Firefox/131.0

Browser/OS: Firefox 131 on Linux

View result in a separate tab

Test name	Executions per second
Array.toSpliced	2296.9 Ops/sec
Array.filter	1923.4 Ops/sec

Related benchmarks:

Array.filter VS Array.toSpliced for element deletion by value (version: 2)

Benchmark the performance of creating a new array with an element removed by value / predicate using Array.filter or Array.toSpliced

Comparing performance of: Array.toSpliced vs Array.filter

Created: one year ago by: Registered User

Jump to the latest result

Array.toSpliced

Array.filter

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A