Benchmark: Array indexOf and splice vs Set delete

Script Preparation code:

function arrayWithLength(length) {
    return Array(length).fill().map((_, i) => i);
}
var arr10 = arrayWithLength(10);
var arr30 = arrayWithLength(30);
var arr100 = arrayWithLength(100);
var set10 = new Set(arr10);
var set30 = new Set(arr30);
var set100 = new Set(arr100);

Tests:

indexOf arr10
const i = arr10.indexOf(9); arr10.splice(i, 1)
delete set10
set10.delete(9);
indexOf arr30
const i = arr10.indexOf(29); arr10.splice(i, 1)
delete set30
set10.delete(29);
indexOf arr99
const i = arr10.indexOf(99); arr10.splice(i, 1)
delete set100
set10.delete(99);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
indexOf arr10
delete set10
indexOf arr30
delete set30
indexOf arr99
delete set100

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 months 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

Test name	Executions per second
indexOf arr10	5760873.0 Ops/sec
delete set10	11470540.0 Ops/sec
indexOf arr30	5412750.0 Ops/sec
delete set30	12648790.0 Ops/sec
indexOf arr99	5604305.0 Ops/sec
delete set100	12549560.0 Ops/sec

Array indexOf and splice vs Set delete (version: 0)

Comparing performance of: indexOf arr10 vs delete set10 vs indexOf arr30 vs delete set30 vs indexOf arr99 vs delete set100

Created: 6 months ago by: Guest

Jump to the latest result

indexOf arr10

delete set10

indexOf arr30

delete set30

indexOf arr99

delete set100

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A