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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

filter().map()

348/s

flatMap()

313/s

View exact numbers

Test name	Executions per second
✓ filter().map()	348 Ops/sec
flatMap()	313 Ops/sec

Script Preparation code:

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

Tests: