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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62

Browser: Chrome 103

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Array.prototype.concat	3542806.0 Ops/sec
Array.prototype.push spread	4535959.0 Ops/sec
Array.prototype.concat.apply	1586130.0 Ops/sec
Array.prototype.push.apply	2686975.0 Ops/sec
Spread	5354830.0 Ops/sec

Script Preparation code:

var params = [ "hello", true, 1, { foo: 'bar' } ];
var concat = (input) => [].concat(params);
var push = (input) => [].push(...input);
var concatApply = (input) => Array.prototype.concat.apply([], input);
var pushApply = (input) => Array.prototype.push.apply([], input);
var spread = (input) => [...input];

Tests:

Array.prototype.concat
const result = concat(params);
Array.prototype.push spread
const result = push(params);
Array.prototype.concat.apply
const result = concatApply(params);
Array.prototype.push.apply
const result = pushApply(params);
Spread
const result = spread(params);

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

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

Array.prototype.concat

Array.prototype.push spread

Array.prototype.concat.apply

Array.prototype.push.apply

Spread