Run results for: flatMap() vs map() and flat()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

flatMap()

398/s

map().flat()

369/s

View exact numbers

Test name	Executions per second
✓ flatMap()	398 Ops/sec
map().flat()	369 Ops/sec

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr[i] = {
    num: [1, i++]
};

Tests: