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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 YaBrowser/20.11.3.268 (beta) Yowser/2.5 Safari/537.36

Browser: Yandex Browser 20

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
reduce + Array.prototype.concat	3090796.5 Ops/sec
Array.prototype.flat	653698.8 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();

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

Compare the new ES6 spread operator with the traditional concat() method

reduce + Array.prototype.concat

Array.prototype.flat