Run results for: for-push vs filter

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.81 Safari/537.36

Browser: Chrome 104

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
for-push	800.9 Ops/sec
flatMap	816.3 Ops/sec

Script Preparation code:

var arr = Array.from({length: 10_000}, () => Math.floor(Math.random() * 2));

Tests:

for-push
var result = []; for (var i = 0; i < arr.length; i++) { var item = arr[i]; if (item !== 0) { result.push(item); } }
flatMap
arr.flatMap((x) => (x !== 0 ? [x] : []));