Run results for: Array.prototype.concat vs spread operator

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0

Browser: Firefox 61

Operating system: Windows 8.1

Device Platform: Other

Date tested: 5 years ago

Test name	Executions per second
Array.prototype.concat	16502360.0 Ops/sec
spread operator	8856437.0 Ops/sec

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var clone = [ ...params ]; clone.push({something: 'new'});
spread operator
var params = [ "hello", true, 7 ] var clone = params.concat([{something: 'new'}])