Run results for: Array concat vs spread operator vs push555 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Linux; Android 9; Unspecified Device) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3764.0 Mobile Safari/537.36

Browser: Chrome Mobile 75

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Array.prototype.concat	3485553.0 Ops/sec
spread operator	13497860.0 Ops/sec
Push	22128680.0 Ops/sec

Website performance monitoring

Tests:

Array.prototype.concat
var params = [ 3]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ 1, 2 ] var other = [ ...params, 3 ]
Push
var params = 2; var other = [ 1, 2 ].push(params);