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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 11_3 like Mac OS X) AppleWebKit/604.1.34 (KHTML, like Gecko) CriOS/66.0.3359.122 Mobile/15E216 Safari/604.1

Browser: Chrome Mobile iOS 66

Operating system: iOS 11.3

Device Platform: iPhone

Date tested: 6 years ago

Test name	Executions per second
Array.prototype.concat	8897735.0 Ops/sec
spread operator	35399560.0 Ops/sec
jQuery merge	4324413.0 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 ]
jQuery merge
var params = [ "hello", true, 7 ]; var other = $.merge([1, 2], params);

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

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

Array.prototype.concat

spread operator

jQuery merge