Run results for: Array concat vs spread operator vs push

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) GSA/171.0.387713930 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 14

Operating system: iOS 14.7

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
Array.prototype.concat	4640676.5 Ops/sec
spread operator	94312264.0 Ops/sec
Push	2547222.2 Ops/sec

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(...params);

Run results for: Array concat vs spread operator vs push

Compare the new ES6 spread operator with the traditional concat() method and push

Array.prototype.concat

spread operator

Push