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

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.0.0; PRA-LX1 Build/HUAWEIPRA-LX1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36

Browser: Chrome Mobile 69

Operating system: Android 8.0.0

Device Platform: Mobile

Date tested: 5 years ago

Test name	Executions per second
Array.prototype.concat	1058536.2 Ops/sec
spread operator	2908942.5 Ops/sec
apply proto	657594.1 Ops/sec
params.push	3018967.8 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 = params.push(...[1, 2]);
apply proto
var params = [ "hello", true, 7 ]; Array.prototype.push.apply(params, [1, 2]);
params.push
var params = [ "hello", true, 7 ]; var other = params.push.apply(params, [1, 2]);

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

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

Array.prototype.concat

spread operator

apply proto

params.push