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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:100.0) Gecko/20100101 Firefox/100.0

Browser: Firefox 100

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
reduce + Array.prototype.concat	4762.9 Ops/sec
Array.prototype.flat	4602.2 Ops/sec
concat(...)	5451.5 Ops/sec

Script Preparation code:

var params = [
    [1, 2],
    ["hello", true, 7],
    Array(10000).fill(4),
];

Tests:

reduce + Array.prototype.concat
const x = params.reduce((acc, val) => acc.concat(val), []);
Array.prototype.flat
const x = params.flat(1);
concat(...)
const x = [].concat(...params)