Run results for: Array splice vs. Set delete

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Array splice

44K/s

Set delete

26K/s

View exact numbers

Test name	Executions per second
✓ Array splice	44,182 Ops/sec
Set delete	25,580 Ops/sec

HTML Preparation code:

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Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

Tests:

Set delete
const arrOrg = new Array(1000).fill(() => 'Nei'); const arr = arrOrg.map(() => () => 'Nei'); const func = () => console.log('Hei!'); const set = new Set([...arr, func]); set.delete(func);
Array splice
const arrOrg = new Array(1000).fill(() => 'Nei'); const arr = arrOrg.map(() => () => 'Nei'); const func = () => console.log('Hei!'); const set = [...arr, func]; const index = set.indexOf(func); set.splice(index, 1);