Benchmark: Array.prototype.concat vs spread operator vs spread push vs multiple push

Script Preparation code:

var params = [ "hello", true, 7 ];
var existingArray = [1, 2];

Tests:

Array.prototype.concat
var other = existingArray.concat(params);
Multiple spread
var other = [ ...existingArray, ...params ]
Push spread
var other = existingArray.push(...params);
Multiple push
var other = params.forEach(function (item) { existingArray.push(item); });

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36

Browser/OS: Chrome 70 on Mac OS X 10.13.6

Array.prototype.concat vs spread operator vs spread push vs multiple push (version: 0)