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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36 OPR/85.0.4341.60

Browser: Opera 85

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
filter().map()	86.0 Ops/sec
flatMap()	30.6 Ops/sec

Script Preparation code:

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

Tests: