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

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; SM-G973F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.86 Mobile Safari/537.36

Browser: Chrome Mobile 89

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
filter().map()	121.7 Ops/sec
flatMap()	69.8 Ops/sec

Script Preparation code:

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

Tests: