Run results for: `filter().length` vs. `reduce` 2

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

reduce

648K/s

for loop

645K/s

filter().length

633K/s

View exact numbers

Script Preparation code:

var sample = Array(10000).fill(0).map((_, idx) => idx);
var selected = [10, 134, 245, 355, 489, 583, 682, 823, 2081, 3892, 4892, 5829, 6832];

Tests:

filter().length
var total = selected.filter(id => sample.includes(id)).length;
reduce
var total = selected.reduce((total, id) => sample.includes(id) ? total + 1 : total, 0);
for loop
var total = 0; for (const id of selected) { if (sample.includes(id)) { total++; } }