Run results for: reduce.concat() vs flat()

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; Mi Pad 4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.93 Safari/537.36

Browser: Chrome 88

Operating system: Android

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
reduce + Array.prototype.concat	1189711.6 Ops/sec
Array.prototype.flat	315095.0 Ops/sec

Tests:

reduce + Array.prototype.concat
var params = [[ 1, 2 ], [ "hello", true, 7 ]]; var other = params.reduce((acc, val) => acc.concat(val), []);
Array.prototype.flat
var params = [[1, 2, params], [ "hello", true, 7 ]]; var other = params.flat();