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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

filter().map()

957/s

flatMap()

475/s

View exact numbers

Test name	Executions per second
✓ filter().map()	957 Ops/sec
flatMap()	475 Ops/sec

Script Preparation code:

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

Tests: