Run results for: Filter vs for

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.0) Gecko/20100101 Firefox/132.0

Browser: Firefox 132

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Filter

190K/s

for of

189K/s

View exact numbers

Test name	Executions per second
✓ Filter	190,415 Ops/sec
for of	189,185 Ops/sec

Script Preparation code:

window.parentObj = [];

for (let i = 0; i < 1000; i++) {
  window.parentObj.push(Math.floor(Math.random() * 4294967295));
}

Tests:

Filter
const newObj = window.parentObj.filter(n => n % 2);
for of
const newObj = []; for (const n of window.parentObj) { if ((n % 2) === 0) { newObj.push(n); } }