Run results for: JS concat vs spread operator

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; MAR-LX1A) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Mobile Safari/537.36 (Ecosia [email protected])

Browser: Chrome Mobile 101

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Array concat	2172428.5 Ops/sec
spread operator	10391807.0 Ops/sec

Tests:

Array concat
const params = [ "hello", true, 7 ]; [1, 2].concat(params)
spread operator
const params = [ "hello", true, 7 ]; [1, 2, ...params]

Run results for: JS concat vs spread operator

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

Array concat

spread operator