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

Run details:

User agent: Mozilla/5.0 (Linux; Android 7.1.1; E6853 Build/32.4.A.1.54) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.157 Mobile Safari/537.36 OPR/53.0.2569.141117

Browser: Opera Mobile 53

Operating system: Android 7.1.1

Device Platform: Mobile

Date tested: 5 years ago

Test name	Executions per second
Array.prototype.concat	1125737.5 Ops/sec
spread operator	6696102.0 Ops/sec
apply proto	1610519.4 Ops/sec
params.push	6807805.0 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 = 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