Benchmark: Removal from array

Tests:

Keep items that are not supposed to be removed
let items = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }, { id: 5 }, { id: 6 }]; const itemsToRemove = [{ id: 2 }, { id: 4 }, { id: 5 }]; items = items.filter(item => !itemsToRemove.find(remove => remove.id === item.id));
Remove items that are supposed to be removed
let items = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }, { id: 5 }, { id: 6 }]; const itemsToRemove = [{ id: 2 }, { id: 4 }, { id: 5 }]; itemsToRemove.forEach(remove => { const index = items.findIndex(item => item.id === remove.id); items.splice(index, 1); });

Rendered benchmark preparation results:

Previous results

Test case name	Result
Keep items that are not supposed to be removed
Remove items that are supposed to be removed

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0

Browser/OS: Firefox 75 on Ubuntu

Test name	Executions per second
Keep items that are not supposed to be removed	2458975.0 Ops/sec
Remove items that are supposed to be removed	1247965.0 Ops/sec

Removal from array (version: 0)