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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36

Browser: Chrome 93

Operating system: Mac OS X 10.15.3

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
filter().map()	294.5 Ops/sec
flatMap()	102.4 Ops/sec

Script Preparation code:

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

Tests: