Benchmark: for-of-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
const x = [] for (var y of arr) { x.push(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: 11 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0

Browser/OS: Firefox 114 on Linux

View result in a separate tab

Test name	Executions per second
for of	31138.2 Ops/sec
map	33171.8 Ops/sec

for-of-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