Benchmark: omit (reduce) vs omit (Object.fromEntries)

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

function omit(obj, keys) {
    return keys.reduce((a, e) => {
        const {
            [e]: _, ...rest
        } = a;
        return rest;
    }, obj);
}

function omit2(obj, keys) {
    return Object.fromEntries(Object.entries(obj).filter(([k]) => !keys.includes(k)));
}

Tests:

omit
omit({ a: 1, b: 2, c: 3 }, ['b']);
omit2
omit2({ a: 1, b: 2, c: 3 }, ['b']);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
omit
omit2

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36 OPR/117.0.0.0

Browser/OS: Opera 117 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
omit	20824730.0 Ops/sec
omit2	4754117.0 Ops/sec

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reduce object vs object.fromentries (1K records)
Object.fromEntries vs reduce 123
Object.fromEntries vs reduce - 100 keys
omit (reduce) vs omit (Object.fromEntries) 2

omit (reduce) vs omit (Object.fromEntries) (version: 1)

Comparing performance of: omit vs omit2

Created: one year ago by: Guest

Jump to the latest result

omit

omit2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A