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

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.1.0; Pixel Build/OPM2.171019.029) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.126 Mobile Safari/537.36

Browser: Chrome Mobile 66

Operating system: Android 8.1.0

Device Platform: Pixel

Date tested: 6 years ago

Test name	Executions per second
Array.prototype.concat	2493211.0 Ops/sec
spread operator	1825182.0 Ops/sec
jQuery merge	289872.8 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 ]
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