Benchmark: reduce.concat() vs flat() vs spread

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();
... spread
var params = [[ 1, 2 ], [ "hello", true, 7 ]]; var other = params.reduce((acc, val) => [...acc, val], []);

Rendered benchmark preparation results:

Previous results

Test case name	Result
reduce + Array.prototype.concat
Array.prototype.flat
... spread

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0

Browser/OS: Firefox 91 on Windows

Test name	Executions per second
reduce + Array.prototype.concat	5231695.0 Ops/sec
Array.prototype.flat	8972890.0 Ops/sec
... spread	10086290.0 Ops/sec

reduce.concat() vs flat() vs spread (version: 0)