Benchmark: mutate-vs-map - MeasureThat.net

Script Preparation code:

var arr = [];
for (var i = 0; i < 1000; i++) {
    arr[i] = {
        name: `${i}`,
        value: i
    };
}

function someFn(i) {
    const x24 = i.value * 3 * 8;
    i.value = x24;
    i.name = `${x24}`;
    return i;
}

Tests:

for of
for (var y of arr) { someFn(y); }
map
arr.map(item => someFn(item))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for of
map

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/119.0

Browser/OS: Firefox 119 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
for of	34940.9 Ops/sec
map	34092.4 Ops/sec

mutate-vs-map (version: 0)

Comparing performance of: for of vs map

Created: one year ago by: Guest

Jump to the latest result

for of

map

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A