Benchmark: HashMapLoop - MeasureThat.net

Script Preparation code:

var a = {
    1: {
        id: 1
    },
    2: {
        id: 2
    },
    3: {
        id: 3
    }
};

function extractValues(obj) {
    const t = [];
    for (var key in obj) {
        t.push(obj[key]);
    }
    return t;
}

function extractAndFilter(obj) {
    const t = [];
    for (var key in obj) {
        if (obj[key].id > 1) {
            t.push(obj[key].name);
        }
    }
    return t;
}

Tests:

Object.values
Object.values(a).filter(model => model.id > 1).map(model => model.id)
for in
extractValues(a).filter(model => model.id > 1).map(model => model.id)
Object.entries
Object.entries(a).filter(([, model]) => model.id > 1).map(([key]) => key);
Object.keys
Object.keys(a).filter(id => a[id].id > 1).map(id => a[id].id);
extractAndFilter
extractAndFilter(a);
reduce
Object.values(a).reduce((a, b) => { if(b.id > 1) { a.push(b.name); } return a; }, [])

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.values
for in
Object.entries
Object.keys
extractAndFilter
reduce

Fastest: N/A

Slowest: N/A

Latest run results:

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Related benchmarks:

HashMapLoop (version: 0)

Comparing performance of: Object.values vs for in vs Object.entries vs Object.keys vs extractAndFilter vs reduce

Created: 5 years ago by: Guest

Jump to the latest result

Object.values

for in

Object.entries

Object.keys

extractAndFilter

reduce

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results