Run results for: Array concat vs spread operator vs push (via for loop)

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/111.0.5563.72 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 111

Operating system: iOS 16.3

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Array.prototype.concat	21205542.0 Ops/sec
spread operator	416921120.0 Ops/sec
Push	2859929.8 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 ]; const other = params for(const param in params){ other.push(param) }

Run results for: Array concat vs spread operator vs push (via for loop)

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

Array.prototype.concat

spread operator

Push