Run results for: flatMap vs reduce

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_3_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36

Browser: Chrome 89

Operating system: Mac OS X 11.3.0

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
reduce with concat	8.1 Ops/sec
flatMap	232.7 Ops/sec

Script Preparation code:

var arr = Array(10_000).fill(0)

Tests: