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Run results for:
Array.filter VS Array.toSpliced for element deletion
Benchmark the performance of creating a new array with an element removed by using either Array.toSpliced or Array.filter
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<iframe src="https://measurethat.net/Embed?id=613002" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0
Browser:
Firefox 139
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Array.toSpliced
99K/s
Array.filter
12K/s
View exact numbers
Test name
Executions per second
✓
Array.toSpliced
99,079 Ops/sec
Array.filter
12,224 Ops/sec
Script Preparation code:
const arr = Array.from({ length: 10_000 }).map((_, i) => i) const deleteIndex = Math.floor(Math.random() * arr.length)
Tests:
Array.toSpliced
const newArr = arr.toSpliced(deleteIndex, 1)
Array.filter
const newArr = arr.filter((_, i) => i != deleteIndex)