Run results for: flatMap() vs filter().map()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:138.0) Gecko/20100101 Firefox/138.0

Browser: Firefox 138

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

filter().map()

850/s

flatMap()

803/s

View exact numbers

Test name	Executions per second
✓ filter().map()	850 Ops/sec
flatMap()	803 Ops/sec

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr[i] = i++;

Tests: